{"id":700,"date":"2025-06-13T09:04:26","date_gmt":"2025-06-13T09:04:26","guid":{"rendered":"https:\/\/lzbmetal.com\/?p=700"},"modified":"2025-06-23T01:27:59","modified_gmt":"2025-06-23T01:27:59","slug":"vong-dieu-chinh-nap-ho-ga-bang-gang-deo","status":"publish","type":"post","link":"https:\/\/lzbmetal.com\/vi\/vong-dieu-chinh-nap-ho-ga-bang-gang-deo\/","title":{"rendered":"V\u00f2ng \u0111i\u1ec1u ch\u1ec9nh gang d\u1ebbo"},"content":{"rendered":"<h3 class=\"wp-block-heading\">I. T\u00ednh n\u0103ng k\u1ef9 thu\u1eadt<\/h3>\n\n\n\n<p>V\u00f2ng \u0111i\u1ec1u ch\u1ec9nh b\u1eb1ng gang d\u1ebbo l\u00e0 m\u1ed9t th\u00e0nh ph\u1ea7n chuy\u1ec3n ti\u1ebfp quan tr\u1ecdng \u0111\u01b0\u1ee3c l\u1eafp \u0111\u1eb7t gi\u1eefa \u1ed1ng kh\u00f3i v\u00e0 n\u1eafp h\u1ed1 ga, \u0111\u1ea3m b\u1ea3o c\u0103n ch\u1ec9nh m\u1eb7t \u0111\u01b0\u1eddng ho\u00e0n h\u1ea3o th\u00f4ng qua vi\u1ec7c san l\u1ea5p m\u1eb7t b\u1eb1ng ch\u00ednh x\u00e1c. N\u00f3 gi\u1ea3i quy\u1ebft ba th\u00e1ch th\u1ee9c k\u1ef9 thu\u1eadt ch\u00ednh: &nbsp;<\/p>\n\n\n\n<p>1. B\u00f9 l\u00fan: N\u00e2ng cao l\u1edbp ph\u1ee7 th\u00f4ng qua vi\u1ec7c x\u1ebfp ch\u1ed3ng v\u00f2ng khi n\u1ec1n \u0111\u01b0\u1eddng b\u1ecb l\u00fan, lo\u1ea1i b\u1ecf vi\u1ec7c ph\u1ea3i x\u00e2y d\u1ef1ng l\u1ea1i \u1ed1ng kh\u00f3i. &nbsp;<\/p>\n\n\n\n<p>2. Hi\u1ec7u ch\u1ec9nh l\u1ed7i thi c\u00f4ng: Cho ph\u00e9p \u0111i\u1ec1u ch\u1ec9nh chi\u1ec1u cao \u00b150mm \u0111\u1ec3 hi\u1ec7u ch\u1ec9nh \u0111\u1ed9 l\u1ec7ch \u0111\u1ed9 cao \u0111\u00fac \u1ed1ng kh\u00f3i. &nbsp;<\/p>\n\n\n\n<p>3. T\u01b0\u01a1ng th\u00edch v\u1edbi nhi\u1ec1u v\u1eadt li\u1ec7u: Th\u00edch \u1ee9ng v\u1edbi nh\u1ef1a \u0111\u01b0\u1eddng, b\u00ea t\u00f4ng, g\u1ea1ch v\u00e0 c\u00e1c k\u1ebft c\u1ea5u v\u1ec9a h\u00e8 kh\u00e1c. &nbsp;<\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h3 class=\"wp-block-heading\">II. \u01afu \u0111i\u1ec3m c\u1ed1t l\u00f5i<\/h3>\n\n\n\n<p><strong>(1) \u0110i\u1ec1u ch\u1ec9nh \u0111\u1ed9 cao ch\u00ednh x\u00e1c<\/strong><\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>- Ph\u1ea1m vi \u0111i\u1ec1u ch\u1ec9nh r\u1ed9ng:<\/li>\n\n\n\n<li>&nbsp;&nbsp;- \u0110i\u1ec1u ch\u1ec9nh chi\u1ec1u cao 20-150mm (5 c\u1ea5p, \u0111\u1ed9 ch\u00ednh x\u00e1c \u00b10,5mm cho m\u1ed7i c\u1ea5p), ph\u00f9 h\u1ee3p cho vi\u1ec7c phay m\u1eb7t \u0111\u01b0\u1eddng v\u00e0 ph\u1ee7 l\u1edbp. &nbsp;<\/li>\n\n\n\n<li>&nbsp;&nbsp;- V\u00f2ng xoay 360\u00b0 (c\u00f3 v\u1ea1ch chia \u0111\u1ed9) cho ph\u00e9p m\u1ed9t ng\u01b0\u1eddi c\u00f3 th\u1ec3 san l\u1ea5p m\u1eb7t b\u1eb1ng trong 10 gi\u00e2y\u2014nhanh h\u01a1n 20 l\u1ea7n so v\u1edbi n\u1ec1n b\u00ea t\u00f4ng. &nbsp;<\/li>\n<\/ul>\n\n\n\n<p>- Thi\u1ebft k\u1ebf ch\u1ed1ng \u0111\u1ecbnh c\u01b0:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u00a0\u00a0- Neo \u0111\u1ebf r\u0103ng c\u01b0a (\u0111\u1ed9 s\u00e2u \u226530mm, l\u1ef1c k\u1eb9p \u226515kN) ng\u0103n ng\u1eeba s\u1ef1 d\u1ecbch chuy\u1ec3n d\u01b0\u1edbi t\u1ea3i tr\u1ecdng c\u1ee7a xe. \u00a0<\/li>\n<\/ul>\n\n\n\n<p><strong>(2) S\u1ee9c m\u1ea1nh k\u1ebft c\u1ea5u c\u1ea5p qu\u00e2n s\u1ef1<\/strong><\/p>\n\n\n\n<p>- V\u1eadt li\u1ec7u &amp; Quy tr\u00ecnh:<\/p>\n\n\n\n<p>&nbsp;&nbsp;- Gang d\u1ebbo QT500-7: C\u01b0\u1eddng \u0111\u1ed9 n\u00e9n \u2265400MPa (g\u1ea5p 4 l\u1ea7n b\u00ea t\u00f4ng C30). &nbsp;<\/p>\n\n\n\n<p>- K\u1ebft c\u1ea5u gia c\u01b0\u1eddng:<\/p>\n\n\n\n<p>&nbsp;&nbsp;- C\u00e1c g\u00e2n v\u00f2ng (d\u00e0y 12mm) + c\u00e1c thanh gia c\u01b0\u1eddng h\u01b0\u1edbng t\u00e2m (8 thanh, cao 20mm) ph\u00e2n b\u1ed5 \u1ee9ng su\u1ea5t t\u1ea3i. &nbsp;<\/p>\n\n\n\n<p>- Ch\u1ee9ng nh\u1eadn t\u1ea3i tr\u1ecdng:<\/p>\n\n\n\n<p>&nbsp;&nbsp;- \u0110\u1ea1t th\u1eed nghi\u1ec7m EN124 D400 (t\u1ea3i tr\u1ecdng t\u0129nh 400kN, bi\u1ebfn d\u1ea1ng &lt;0,15mm). &nbsp;<\/p>\n\n\n\n<p>&nbsp;&nbsp;- T\u01b0\u01a1ng th\u00edch v\u1edbi n\u1eafp \u0111\u1eady 40 t\u1ea5n; kh\u1ea3 n\u0103ng ch\u1ed1ng m\u1ecfi &gt;2 tri\u1ec7u chu k\u1ef3 (t\u1ea3i tr\u1ecdng tu\u1ea7n ho\u00e0n 75kN). &nbsp;<\/p>\n\n\n\n<p><strong>(3) L\u1eafp \u0111\u1eb7t v\u00e0 b\u1ea3o tr\u00ec nhanh ch\u00f3ng<\/strong><\/p>\n\n\n\n<p>- Thi\u1ebft k\u1ebf d\u1ea1ng m\u00f4-\u0111un:<\/p>\n\n\n\n<p>&nbsp;&nbsp;- Ch\u1ed1t kh\u00f3a (th\u00e9p kh\u00f4ng g\u1ec9 304) cho ph\u00e9p l\u1eafp \u0111\u1eb7t \u22643 ph\u00fat\/\u0111\u01a1n v\u1ecb (so v\u1edbi 2 gi\u1edd khi \u0111\u1ed5 b\u00ea t\u00f4ng). &nbsp;<\/p>\n\n\n\n<p>&nbsp;&nbsp;- Giao th\u00f4ng s\u1eb5n s\u00e0ng ngay l\u1eadp t\u1ee9c gi\u00fap gi\u1ea3m th\u1eddi gian \u0111\u00f3ng \u0111\u01b0\u1eddng xu\u1ed1ng 90%. &nbsp;<\/p>\n\n\n\n<p>- Kh\u1ea3 n\u0103ng t\u00e1i s\u1eed d\u1ee5ng:<\/p>\n\n\n\n<p>&nbsp;&nbsp;- 100% c\u00f2n nguy\u00ean v\u1eb9n sau khi th\u00e1o d\u1ee1, th\u00edch h\u1ee3p cho nhi\u1ec1u l\u1ea7n c\u1ea3i t\u1ea1o \u0111\u01b0\u1eddng (n\u1ec1n b\u00ea t\u00f4ng c\u1ea7n ph\u1ea3i ph\u00e1 d\u1ee1). &nbsp;<\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h3 class=\"wp-block-heading\">III. C\u00e1c t\u00ecnh hu\u1ed1ng \u1ee9ng d\u1ee5ng<\/h3>\n\n\n\n<p>- C\u1ea3i t\u1ea1o \u0111\u01b0\u1eddng b\u1ed9:<\/p>\n\n\n\n<p>&nbsp;&nbsp;- \u0110\u1ea1i l\u1ed9 Tr\u01b0\u1eddng An, B\u1eafc Kinh (ti\u1ebft ki\u1ec7m 5.000 c\u0103n h\u1ed9 trong 30 ng\u00e0y). &nbsp;<\/p>\n\n\n\n<p>- V\u00f9ng l\u00fan \u0111\u1ea5t m\u1ec1m:<\/p>\n\n\n\n<p>&nbsp;&nbsp;- \u0110\u01b0\u1eddng b\u0103ng s\u00e2n bay qu\u1ed1c t\u1ebf Ph\u1ed1 \u0110\u00f4ng Th\u01b0\u1ee3ng H\u1ea3i (\u0111i\u1ec1u ch\u1ec9nh t\u00edch l\u0169y: 120mm, \u0111\u1ed9 d\u1ecbch chuy\u1ec3n b\u1eb1ng 0). &nbsp;<\/p>\n\n\n\n<p>- H\u1ec7 th\u1ed1ng Smart Cover:<\/p>\n\n\n\n<p>&nbsp;&nbsp;- \u0110\u01b0\u1eddng th\u00f4ng minh Th\u00e2m Quy\u1ebfn (c\u00e1c v\u00f2ng \u0111\u01b0\u1ee3c trang b\u1ecb s\u1eb5n c\u1ea3m bi\u1ebfn \u0111\u1ed9 nghi\u00eang \u0111\u1ec3 theo d\u00f5i \u0111\u1ed9 l\u00fan theo th\u1eddi gian th\u1ef1c). &nbsp;<\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h3 class=\"wp-block-heading\">IV. Ti\u00eau chu\u1ea9n k\u1ef9 thu\u1eadt v\u00e0 ch\u1ee9ng nh\u1eadn<\/h3>\n\n\n\n<p><strong>- Ti\u00eau chu\u1ea9n qu\u1ed1c t\u1ebf:<\/strong><\/p>\n\n\n\n<p>&nbsp;&nbsp;- EN124 (N\u1eafp ch\u1ecbu l\u1ef1c) &nbsp;<\/p>\n\n\n\n<p>&nbsp;&nbsp;- ISO 1461 (M\u1ea1 k\u1ebdm nh\u00fang n\u00f3ng) &nbsp;<\/p>\n\n\n\n<p><strong>- Ti\u00eau chu\u1ea9n Trung Qu\u1ed1c:<\/strong><\/p>\n\n\n\n<p>&nbsp;&nbsp;- GB\/T 23858-2009 (N\u1eafp c\u1ed1ng) &nbsp;<\/p>\n\n\n\n<p>&nbsp;&nbsp;- CJ\/T 327-2010 (L\u01b0\u1edbi tho\u00e1t n\u01b0\u1edbc t\u00e1i ch\u1ebf) &nbsp;<\/p>\n\n\n\n<p>- Ch\u1ee9ng nh\u1eadn \u0111\u1eb7c bi\u1ec7t:<\/p>\n\n\n\n<p>&nbsp;&nbsp;- Th\u1eed nghi\u1ec7m phun mu\u1ed1i SGS &gt;3.000 gi\u1edd &nbsp;<\/p>\n\n\n\n<p>&nbsp;&nbsp;- Ch\u1ee9ng nh\u1eadn CE-CPR c\u1ee7a EU (Ch\u1ed1ng ch\u00e1y lo\u1ea1i A1) &nbsp;<\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h3 class=\"wp-block-heading\">B\u1ea3n t\u00f3m t\u1eaft<\/h3>\n\n\n\n<p>V\u00f2ng \u0111i\u1ec1u ch\u1ec9nh b\u1eb1ng gang d\u1ebbo \u0111\u1ecbnh ngh\u0129a l\u1ea1i kh\u1ea3 n\u0103ng ki\u1ec3m so\u00e1t \u0111\u1ed9 cao c\u1ee7a \u0111\u01b0\u1eddng th\u00f4ng qua kh\u1ea3 n\u0103ng san l\u1ea5p m\u1eb7t b\u1eb1ng \u0111\u1ebfn t\u1eebng milim\u00e9t, ho\u1ea1t \u0111\u1ed9ng kh\u00f4ng c\u1ea7n b\u1ea3o tr\u00ec tr\u1ecdn \u0111\u1eddi v\u00e0 kh\u1ea3 n\u0103ng t\u01b0\u01a1ng th\u00edch v\u1edbi t\u1ea3i tr\u1ecdng n\u1eb7ng: &nbsp;<\/p>\n\n\n\n<p>1. C\u00e1ch m\u1ea1ng c\u00e2n b\u1eb1ng: \u0110i\u1ec1u ch\u1ec9nh v\u00f4 c\u1ea5p 20-150mm, ch\u00ednh x\u00e1c h\u01a1n 10 l\u1ea7n so v\u1edbi n\u1ec1n b\u00ea t\u00f4ng! &nbsp;<\/p>\n\n\n\n<p>2. \u01afu th\u1ebf v\u1ec1 kinh t\u1ebf: Kh\u00f4ng c\u1ea7n b\u1ea3o tr\u00ec trong 30 n\u0103m; t\u1ed5ng chi ph\u00ed = 18% gi\u1ea3i ph\u00e1p b\u00ea t\u00f4ng. &nbsp;<\/p>\n\n\n\n<p>3. T\u00edch h\u1ee3p th\u00f4ng minh: C\u00e1c c\u1ea3m bi\u1ebfn t\u00f9y ch\u1ecdn cho ph\u00e9p c\u1ea3nh b\u00e1o l\u00fan, k\u00e9o d\u00e0i tu\u1ed5i th\u1ecd \u0111\u01b0\u1eddng th\u00eam 50%. &nbsp;<\/p>\n\n\n\n<p><strong>&gt; H\u01b0\u1edbng d\u1eabn tuy\u1ec3n sinh ng\u00e0nh K\u1ef9 thu\u1eadt:<\/strong><\/p>\n\n\n\n<p>&gt; - \u0110\u01b0\u1eddng ti\u00eau chu\u1ea9n: M\u1eabu c\u01a1 s\u1edf QT500-7 (\u0111i\u1ec1u ch\u1ec9nh 50mm) &nbsp;<\/p>\n\n\n\n<p>&gt; - V\u00f9ng \u0111\u1ea5t m\u1ec1m\/b\u0103ng gi\u00e1: Phi\u00ean b\u1ea3n neo s\u00e2u (\u0111\u1ed9 s\u00e2u neo \u226550mm) &nbsp;<\/p>\n\n\n\n<p>&gt; - D\u1ef1 \u00e1n th\u00f4ng minh: M\u00f4-\u0111un gi\u00e1m s\u00e1t \u0111\u1ed9 nghi\u00eang b\u1eaft bu\u1ed9c (\u0111\u1ed9 ch\u00ednh x\u00e1c \u00b10,1\u00b0)<\/p>","protected":false},"excerpt":{"rendered":"<p>I. T\u00ednh n\u0103ng k\u1ef9 thu\u1eadt V\u00f2ng \u0111i\u1ec1u ch\u1ec9nh b\u1eb1ng gang d\u1ebbo l\u00e0 th\u00e0nh ph\u1ea7n chuy\u1ec3n ti\u1ebfp quan tr\u1ecdng \u0111\u01b0\u1ee3c l\u1eafp \u0111\u1eb7t gi\u1eefa \u1ed1ng kh\u00f3i h\u1ed1 ga v\u00e0 n\u1eafp \u0111\u1eady, \u0111\u1ea3m b\u1ea3o c\u0103n ch\u1ec9nh m\u1eb7t \u0111\u01b0\u1eddng ho\u00e0n h\u1ea3o th\u00f4ng qua vi\u1ec7c san l\u1ea5p m\u1eb7t b\u1eb1ng ch\u00ednh x\u00e1c. N\u00f3 gi\u1ea3i quy\u1ebft ba th\u00e1ch th\u1ee9c k\u1ef9 thu\u1eadt ch\u00ednh: 1. B\u00f9 l\u00fan: N\u00e2ng n\u1eafp \u0111\u1eady th\u00f4ng qua vi\u1ec7c x\u1ebfp ch\u1ed3ng v\u00f2ng khi n\u1ec1n \u0111\u01b0\u1eddng b\u1ecb l\u00fan, lo\u1ea1i b\u1ecf vi\u1ec7c t\u00e1i thi\u1ebft \u1ed1ng kh\u00f3i. 2. S\u1eeda l\u1ed7i x\u00e2y d\u1ef1ng: Cho ph\u00e9p [\u2026]<\/p>","protected":false},"author":2,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[51,3,2,8],"tags":[128,126,75],"class_list":["post-700","post","type-post","status-publish","format-standard","hentry","category-adjusting-ring","category-ductile-cast-iron-products","category-products","category-round-manhole-cover","tag-adjusting-ring","tag-ductile-cast-iron","tag-ductile-iron"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.4 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>Ductile Cast Iron Adjusting Ring Adjusting Ring - LZBMetal Products Co., Ltd<\/title>\n<meta name=\"description\" content=\"Ductile Cast Iron Adjusting Ring Cast from QT500-7 ductile iron, this adjustable supporting structure is installed between the manhole cover and frame to precisely compensate for road elevation changes (e.g., asphalt paving, ground settlement). Its core functions include millimeter-level height adjustment, enhanced load-bearing capacity, and extended manhole lifespan. Compatible with EN124 standard covers, it is an essential component for road maintenance and municipal engineering.\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/lzbmetal.com\/vi\/vong-dieu-chinh-nap-ho-ga-bang-gang-deo\/\" \/>\n<meta property=\"og:locale\" content=\"vi_VN\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Ductile Cast Iron Adjusting Ring Adjusting Ring - LZBMetal Products Co., Ltd\" \/>\n<meta property=\"og:description\" content=\"Ductile Cast Iron Adjusting Ring Cast from QT500-7 ductile iron, this adjustable supporting structure is installed between the manhole cover and frame to precisely compensate for road elevation changes (e.g., asphalt paving, ground settlement). Its core functions include millimeter-level height adjustment, enhanced load-bearing capacity, and extended manhole lifespan. Compatible with EN124 standard covers, it is an essential component for road maintenance and municipal engineering.\" \/>\n<meta property=\"og:url\" content=\"https:\/\/lzbmetal.com\/vi\/vong-dieu-chinh-nap-ho-ga-bang-gang-deo\/\" \/>\n<meta property=\"og:site_name\" content=\"LZBMetal Products Co., Ltd\" \/>\n<meta property=\"article:published_time\" content=\"2025-06-13T09:04:26+00:00\" \/>\n<meta property=\"article:modified_time\" content=\"2025-06-23T01:27:59+00:00\" \/>\n<meta name=\"author\" content=\"luzhongbao\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:creator\" content=\"@Levi_Luzhongbao\" \/>\n<meta name=\"twitter:label1\" content=\"\u0110\u01b0\u1ee3c vi\u1ebft b\u1edfi\" \/>\n\t<meta name=\"twitter:data1\" content=\"luzhongbao\" \/>\n\t<meta name=\"twitter:label2\" content=\"\u01af\u1edbc t\u00ednh th\u1eddi gian \u0111\u1ecdc\" \/>\n\t<meta name=\"twitter:data2\" content=\"2 ph\u00fat\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\\\/\\\/schema.org\",\"@graph\":[{\"@type\":\"Article\",\"@id\":\"https:\\\/\\\/lzbmetal.com\\\/ductile-cast-iron-manhole-cover-adjustment-ring\\\/#article\",\"isPartOf\":{\"@id\":\"https:\\\/\\\/lzbmetal.com\\\/ductile-cast-iron-manhole-cover-adjustment-ring\\\/\"},\"author\":{\"name\":\"luzhongbao\",\"@id\":\"https:\\\/\\\/lzbmetal.com\\\/#\\\/schema\\\/person\\\/03225aba1019488054ecea53728c5cf0\"},\"headline\":\"Ductile Cast Iron Adjusting Ring\",\"datePublished\":\"2025-06-13T09:04:26+00:00\",\"dateModified\":\"2025-06-23T01:27:59+00:00\",\"mainEntityOfPage\":{\"@id\":\"https:\\\/\\\/lzbmetal.com\\\/ductile-cast-iron-manhole-cover-adjustment-ring\\\/\"},\"wordCount\":497,\"commentCount\":0,\"keywords\":[\"Adjusting Ring\",\"Ductile Cast Iron\",\"Ductile Iron\"],\"articleSection\":[\"Adjusting Ring\",\"Ductile Cast Iron Products\",\"Products\",\"Round Manhole Cover\"],\"inLanguage\":\"vi\",\"potentialAction\":[{\"@type\":\"CommentAction\",\"name\":\"Comment\",\"target\":[\"https:\\\/\\\/lzbmetal.com\\\/ductile-cast-iron-manhole-cover-adjustment-ring\\\/#respond\"]}]},{\"@type\":\"WebPage\",\"@id\":\"https:\\\/\\\/lzbmetal.com\\\/ductile-cast-iron-manhole-cover-adjustment-ring\\\/\",\"url\":\"https:\\\/\\\/lzbmetal.com\\\/ductile-cast-iron-manhole-cover-adjustment-ring\\\/\",\"name\":\"Ductile Cast Iron Adjusting Ring Adjusting Ring - LZBMetal Products Co., Ltd\",\"isPartOf\":{\"@id\":\"https:\\\/\\\/lzbmetal.com\\\/#website\"},\"datePublished\":\"2025-06-13T09:04:26+00:00\",\"dateModified\":\"2025-06-23T01:27:59+00:00\",\"author\":{\"@id\":\"https:\\\/\\\/lzbmetal.com\\\/#\\\/schema\\\/person\\\/03225aba1019488054ecea53728c5cf0\"},\"description\":\"Ductile Cast Iron Adjusting Ring Cast from QT500-7 ductile iron, this adjustable supporting structure is installed between the manhole cover and frame to precisely compensate for road elevation changes (e.g., asphalt paving, ground settlement). Its core functions include millimeter-level height adjustment, enhanced load-bearing capacity, and extended manhole lifespan. Compatible with EN124 standard covers, it is an essential component for road maintenance and municipal engineering.\",\"breadcrumb\":{\"@id\":\"https:\\\/\\\/lzbmetal.com\\\/ductile-cast-iron-manhole-cover-adjustment-ring\\\/#breadcrumb\"},\"inLanguage\":\"vi\",\"potentialAction\":[{\"@type\":\"ReadAction\",\"target\":[\"https:\\\/\\\/lzbmetal.com\\\/ductile-cast-iron-manhole-cover-adjustment-ring\\\/\"]}]},{\"@type\":\"BreadcrumbList\",\"@id\":\"https:\\\/\\\/lzbmetal.com\\\/ductile-cast-iron-manhole-cover-adjustment-ring\\\/#breadcrumb\",\"itemListElement\":[{\"@type\":\"ListItem\",\"position\":1,\"name\":\"\u9996\u9875\",\"item\":\"https:\\\/\\\/lzbmetal.com\\\/\"},{\"@type\":\"ListItem\",\"position\":2,\"name\":\"Ductile Cast Iron Adjusting Ring\"}]},{\"@type\":\"WebSite\",\"@id\":\"https:\\\/\\\/lzbmetal.com\\\/#website\",\"url\":\"https:\\\/\\\/lzbmetal.com\\\/\",\"name\":\"Hubei LZBMetal Products Co., Ltd\",\"description\":\"Your Design, Our Factory. Custom Manhole Covers Made Easy\",\"potentialAction\":[{\"@type\":\"SearchAction\",\"target\":{\"@type\":\"EntryPoint\",\"urlTemplate\":\"https:\\\/\\\/lzbmetal.com\\\/?s={search_term_string}\"},\"query-input\":{\"@type\":\"PropertyValueSpecification\",\"valueRequired\":true,\"valueName\":\"search_term_string\"}}],\"inLanguage\":\"vi\"},{\"@type\":\"Person\",\"@id\":\"https:\\\/\\\/lzbmetal.com\\\/#\\\/schema\\\/person\\\/03225aba1019488054ecea53728c5cf0\",\"name\":\"luzhongbao\",\"image\":{\"@type\":\"ImageObject\",\"inLanguage\":\"vi\",\"@id\":\"https:\\\/\\\/secure.gravatar.com\\\/avatar\\\/1ac515e20f844126be310a41cfa092daaf1e2b3b291d9328ac9dba05b400b569?s=96&d=mm&r=g\",\"url\":\"https:\\\/\\\/secure.gravatar.com\\\/avatar\\\/1ac515e20f844126be310a41cfa092daaf1e2b3b291d9328ac9dba05b400b569?s=96&d=mm&r=g\",\"contentUrl\":\"https:\\\/\\\/secure.gravatar.com\\\/avatar\\\/1ac515e20f844126be310a41cfa092daaf1e2b3b291d9328ac9dba05b400b569?s=96&d=mm&r=g\",\"caption\":\"luzhongbao\"},\"sameAs\":[\"https:\\\/\\\/x.com\\\/Levi_Luzhongbao\"],\"url\":\"https:\\\/\\\/lzbmetal.com\\\/vi\\\/author\\\/luzhongbao\\\/\"}]}<\/script>\n<!-- \/ Yoast SEO plugin. -->","yoast_head_json":{"title":"V\u00f2ng \u0111i\u1ec1u ch\u1ec9nh b\u1eb1ng gang d\u1ebbo - C\u00f4ng ty TNHH S\u1ea3n ph\u1ea9m Kim lo\u1ea1i LZBM","description":"V\u00f2ng \u0111i\u1ec1u ch\u1ec9nh b\u1eb1ng gang d\u1ebbo \u0110\u00fac t\u1eeb gang d\u1ebbo QT500-7, c\u1ea5u tr\u00fac h\u1ed7 tr\u1ee3 c\u00f3 th\u1ec3 \u0111i\u1ec1u ch\u1ec9nh n\u00e0y \u0111\u01b0\u1ee3c l\u1eafp \u0111\u1eb7t gi\u1eefa n\u1eafp h\u1ed1 ga v\u00e0 khung \u0111\u1ec3 b\u00f9 ch\u00ednh x\u00e1c cho nh\u1eefng thay \u0111\u1ed5i v\u1ec1 \u0111\u1ed9 cao c\u1ee7a \u0111\u01b0\u1eddng (v\u00ed d\u1ee5, tr\u1ea3i nh\u1ef1a \u0111\u01b0\u1eddng, l\u00fan \u0111\u1ea5t). C\u00e1c ch\u1ee9c n\u0103ng c\u1ed1t l\u00f5i c\u1ee7a n\u00f3 bao g\u1ed3m \u0111i\u1ec1u ch\u1ec9nh \u0111\u1ed9 cao \u1edf m\u1ee9c milim\u00e9t, kh\u1ea3 n\u0103ng ch\u1ecbu t\u1ea3i \u0111\u01b0\u1ee3c t\u0103ng c\u01b0\u1eddng v\u00e0 k\u00e9o d\u00e0i tu\u1ed5i th\u1ecd c\u1ee7a h\u1ed1 ga. T\u01b0\u01a1ng th\u00edch v\u1edbi n\u1eafp ti\u00eau chu\u1ea9n EN124, \u0111\u00e2y l\u00e0 th\u00e0nh ph\u1ea7n thi\u1ebft y\u1ebfu cho c\u00f4ng t\u00e1c b\u1ea3o d\u01b0\u1ee1ng \u0111\u01b0\u1eddng b\u1ed9 v\u00e0 k\u1ef9 thu\u1eadt \u0111\u00f4 th\u1ecb.","robots":{"index":"index","follow":"follow","max-snippet":"max-snippet:-1","max-image-preview":"max-image-preview:large","max-video-preview":"max-video-preview:-1"},"canonical":"https:\/\/lzbmetal.com\/vi\/vong-dieu-chinh-nap-ho-ga-bang-gang-deo\/","og_locale":"vi_VN","og_type":"article","og_title":"Ductile Cast Iron Adjusting Ring Adjusting Ring - LZBMetal Products Co., Ltd","og_description":"Ductile Cast Iron Adjusting Ring Cast from QT500-7 ductile iron, this adjustable supporting structure is installed between the manhole cover and frame to precisely compensate for road elevation changes (e.g., asphalt paving, ground settlement). Its core functions include millimeter-level height adjustment, enhanced load-bearing capacity, and extended manhole lifespan. Compatible with EN124 standard covers, it is an essential component for road maintenance and municipal engineering.","og_url":"https:\/\/lzbmetal.com\/vi\/vong-dieu-chinh-nap-ho-ga-bang-gang-deo\/","og_site_name":"LZBMetal Products Co., Ltd","article_published_time":"2025-06-13T09:04:26+00:00","article_modified_time":"2025-06-23T01:27:59+00:00","author":"luzhongbao","twitter_card":"summary_large_image","twitter_creator":"@Levi_Luzhongbao","twitter_misc":{"\u0110\u01b0\u1ee3c vi\u1ebft b\u1edfi":"luzhongbao","\u01af\u1edbc t\u00ednh th\u1eddi gian \u0111\u1ecdc":"2 ph\u00fat"},"schema":{"@context":"https:\/\/schema.org","@graph":[{"@type":"Article","@id":"https:\/\/lzbmetal.com\/ductile-cast-iron-manhole-cover-adjustment-ring\/#article","isPartOf":{"@id":"https:\/\/lzbmetal.com\/ductile-cast-iron-manhole-cover-adjustment-ring\/"},"author":{"name":"luzhongbao","@id":"https:\/\/lzbmetal.com\/#\/schema\/person\/03225aba1019488054ecea53728c5cf0"},"headline":"Ductile Cast Iron Adjusting Ring","datePublished":"2025-06-13T09:04:26+00:00","dateModified":"2025-06-23T01:27:59+00:00","mainEntityOfPage":{"@id":"https:\/\/lzbmetal.com\/ductile-cast-iron-manhole-cover-adjustment-ring\/"},"wordCount":497,"commentCount":0,"keywords":["Adjusting Ring","Ductile Cast Iron","Ductile Iron"],"articleSection":["Adjusting Ring","Ductile Cast Iron Products","Products","Round Manhole Cover"],"inLanguage":"vi","potentialAction":[{"@type":"CommentAction","name":"Comment","target":["https:\/\/lzbmetal.com\/ductile-cast-iron-manhole-cover-adjustment-ring\/#respond"]}]},{"@type":"WebPage","@id":"https:\/\/lzbmetal.com\/ductile-cast-iron-manhole-cover-adjustment-ring\/","url":"https:\/\/lzbmetal.com\/ductile-cast-iron-manhole-cover-adjustment-ring\/","name":"V\u00f2ng \u0111i\u1ec1u ch\u1ec9nh b\u1eb1ng gang d\u1ebbo - C\u00f4ng ty TNHH S\u1ea3n ph\u1ea9m Kim lo\u1ea1i LZBM","isPartOf":{"@id":"https:\/\/lzbmetal.com\/#website"},"datePublished":"2025-06-13T09:04:26+00:00","dateModified":"2025-06-23T01:27:59+00:00","author":{"@id":"https:\/\/lzbmetal.com\/#\/schema\/person\/03225aba1019488054ecea53728c5cf0"},"description":"V\u00f2ng \u0111i\u1ec1u ch\u1ec9nh b\u1eb1ng gang d\u1ebbo \u0110\u00fac t\u1eeb gang d\u1ebbo QT500-7, c\u1ea5u tr\u00fac h\u1ed7 tr\u1ee3 c\u00f3 th\u1ec3 \u0111i\u1ec1u ch\u1ec9nh n\u00e0y \u0111\u01b0\u1ee3c l\u1eafp \u0111\u1eb7t gi\u1eefa n\u1eafp h\u1ed1 ga v\u00e0 khung \u0111\u1ec3 b\u00f9 ch\u00ednh x\u00e1c cho nh\u1eefng thay \u0111\u1ed5i v\u1ec1 \u0111\u1ed9 cao c\u1ee7a \u0111\u01b0\u1eddng (v\u00ed d\u1ee5, tr\u1ea3i nh\u1ef1a \u0111\u01b0\u1eddng, l\u00fan \u0111\u1ea5t). C\u00e1c ch\u1ee9c n\u0103ng c\u1ed1t l\u00f5i c\u1ee7a n\u00f3 bao g\u1ed3m \u0111i\u1ec1u ch\u1ec9nh \u0111\u1ed9 cao \u1edf m\u1ee9c milim\u00e9t, kh\u1ea3 n\u0103ng ch\u1ecbu t\u1ea3i \u0111\u01b0\u1ee3c t\u0103ng c\u01b0\u1eddng v\u00e0 k\u00e9o d\u00e0i tu\u1ed5i th\u1ecd c\u1ee7a h\u1ed1 ga. T\u01b0\u01a1ng th\u00edch v\u1edbi n\u1eafp ti\u00eau chu\u1ea9n EN124, \u0111\u00e2y l\u00e0 th\u00e0nh ph\u1ea7n thi\u1ebft y\u1ebfu cho c\u00f4ng t\u00e1c b\u1ea3o d\u01b0\u1ee1ng \u0111\u01b0\u1eddng b\u1ed9 v\u00e0 k\u1ef9 thu\u1eadt \u0111\u00f4 th\u1ecb.","breadcrumb":{"@id":"https:\/\/lzbmetal.com\/ductile-cast-iron-manhole-cover-adjustment-ring\/#breadcrumb"},"inLanguage":"vi","potentialAction":[{"@type":"ReadAction","target":["https:\/\/lzbmetal.com\/ductile-cast-iron-manhole-cover-adjustment-ring\/"]}]},{"@type":"BreadcrumbList","@id":"https:\/\/lzbmetal.com\/ductile-cast-iron-manhole-cover-adjustment-ring\/#breadcrumb","itemListElement":[{"@type":"ListItem","position":1,"name":"\u9996\u9875","item":"https:\/\/lzbmetal.com\/"},{"@type":"ListItem","position":2,"name":"Ductile Cast Iron Adjusting Ring"}]},{"@type":"WebSite","@id":"https:\/\/lzbmetal.com\/#website","url":"https:\/\/lzbmetal.com\/","name":"C\u00f4ng ty TNHH S\u1ea3n ph\u1ea9m Kim lo\u1ea1i H\u1ed3 B\u1eafc LZB","description":"Thi\u1ebft k\u1ebf c\u1ee7a b\u1ea1n, nh\u00e0 m\u00e1y c\u1ee7a ch\u00fang t\u00f4i. S\u1ea3n xu\u1ea5t n\u1eafp c\u1ed1ng theo y\u00eau c\u1ea7u d\u1ec5 d\u00e0ng.","potentialAction":[{"@type":"SearchAction","target":{"@type":"EntryPoint","urlTemplate":"https:\/\/lzbmetal.com\/?s={search_term_string}"},"query-input":{"@type":"PropertyValueSpecification","valueRequired":true,"valueName":"search_term_string"}}],"inLanguage":"vi"},{"@type":"Person","@id":"https:\/\/lzbmetal.com\/#\/schema\/person\/03225aba1019488054ecea53728c5cf0","name":"luzhongbao","image":{"@type":"ImageObject","inLanguage":"vi","@id":"https:\/\/secure.gravatar.com\/avatar\/1ac515e20f844126be310a41cfa092daaf1e2b3b291d9328ac9dba05b400b569?s=96&d=mm&r=g","url":"https:\/\/secure.gravatar.com\/avatar\/1ac515e20f844126be310a41cfa092daaf1e2b3b291d9328ac9dba05b400b569?s=96&d=mm&r=g","contentUrl":"https:\/\/secure.gravatar.com\/avatar\/1ac515e20f844126be310a41cfa092daaf1e2b3b291d9328ac9dba05b400b569?s=96&d=mm&r=g","caption":"luzhongbao"},"sameAs":["https:\/\/x.com\/Levi_Luzhongbao"],"url":"https:\/\/lzbmetal.com\/vi\/author\/luzhongbao\/"}]}},"_links":{"self":[{"href":"https:\/\/lzbmetal.com\/vi\/wp-json\/wp\/v2\/posts\/700","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/lzbmetal.com\/vi\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/lzbmetal.com\/vi\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/lzbmetal.com\/vi\/wp-json\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/lzbmetal.com\/vi\/wp-json\/wp\/v2\/comments?post=700"}],"version-history":[{"count":1,"href":"https:\/\/lzbmetal.com\/vi\/wp-json\/wp\/v2\/posts\/700\/revisions"}],"predecessor-version":[{"id":702,"href":"https:\/\/lzbmetal.com\/vi\/wp-json\/wp\/v2\/posts\/700\/revisions\/702"}],"wp:attachment":[{"href":"https:\/\/lzbmetal.com\/vi\/wp-json\/wp\/v2\/media?parent=700"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/lzbmetal.com\/vi\/wp-json\/wp\/v2\/categories?post=700"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/lzbmetal.com\/vi\/wp-json\/wp\/v2\/tags?post=700"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}