{"id":908,"date":"2025-07-21T07:32:58","date_gmt":"2025-07-21T07:32:58","guid":{"rendered":"https:\/\/lzbmetal.com\/?p=908"},"modified":"2025-07-21T07:32:59","modified_gmt":"2025-07-21T07:32:59","slug":"%d9%83%d9%8a%d9%81%d9%8a%d8%a9-%d8%b4%d8%b1%d8%a7%d8%a1-%d8%ba%d8%b7%d8%a7%d8%a1-%d9%81%d8%aa%d8%ad%d8%a9-%d8%a7%d9%84%d8%b5%d8%b1%d9%81-%d8%a7%d9%84%d8%b5%d8%ad%d9%8a-2","status":"publish","type":"post","link":"https:\/\/lzbmetal.com\/ar\/%d9%83%d9%8a%d9%81%d9%8a%d8%a9-%d8%b4%d8%b1%d8%a7%d8%a1-%d8%ba%d8%b7%d8%a7%d8%a1-%d9%81%d8%aa%d8%ad%d8%a9-%d8%a7%d9%84%d8%b5%d8%b1%d9%81-%d8%a7%d9%84%d8%b5%d8%ad%d9%8a-2\/","title":{"rendered":"\u0643\u064a\u0641\u064a\u0629 \u0627\u062e\u062a\u064a\u0627\u0631 \u0623\u0642\u0637\u0627\u0631 \u0623\u063a\u0637\u064a\u0629 \u0641\u062a\u062d\u0627\u062a \u0627\u0644\u0635\u0631\u0641 \u0627\u0644\u0635\u062d\u064a \u0644\u0644\u0625\u0646\u062a\u0627\u062c"},"content":{"rendered":"<p>\u0641\u064a \u0627\u0644\u0628\u0646\u0627\u0621 \u0627\u0644\u062d\u062f\u064a\u062b \u0648\u062a\u062e\u0637\u064a\u0637 \u0627\u0644\u0645\u062f\u0646\u060c \u062a\u0624\u062f\u064a \u0623\u063a\u0637\u064a\u0629 \u0641\u062a\u062d\u0627\u062a \u0627\u0644\u0635\u0631\u0641 \u0627\u0644\u0635\u062d\u064a \u0648\u0638\u0627\u0626\u0641 \u0623\u0633\u0627\u0633\u064a\u0629\u060c \u0625\u0630 \u062a\u064f\u0633\u0647\u0651\u0644 \u0627\u0644\u0648\u0635\u0648\u0644 \u0625\u0644\u0649 \u0627\u0644\u0645\u0631\u0627\u0641\u0642 \u062a\u062d\u062a \u0627\u0644\u0623\u0631\u0636\u060c \u0645\u0639 \u0645\u0646\u0639 \u0627\u0644\u062f\u062e\u0648\u0644 \u063a\u064a\u0631 \u0627\u0644\u0645\u0635\u0631\u062d \u0628\u0647. \u0639\u0646\u062f \u0627\u062e\u062a\u064a\u0627\u0631 \u0623\u063a\u0637\u064a\u0629 \u0627\u0644\u0625\u0646\u062a\u0627\u062c\u060c \u064a\u064f\u0639\u062f\u0651 \u0627\u0644\u0642\u0637\u0631 \u0645\u0639\u064a\u0627\u0631\u064b\u0627 \u0623\u0633\u0627\u0633\u064a\u064b\u0627 \u064a\u0624\u062b\u0631 \u0639\u0644\u0649 \u0627\u0644\u0623\u062f\u0627\u0621 \u0648\u0627\u0644\u0633\u0644\u0627\u0645\u0629 \u0648\u0627\u0644\u0645\u062a\u0627\u0646\u0629 \u0627\u0644\u0647\u064a\u0643\u0644\u064a\u0629. \u0648\u0631\u063a\u0645 \u0628\u0633\u0627\u0637\u062a\u0647\u060c \u064a\u062a\u0637\u0644\u0628 \u0627\u0644\u0627\u062e\u062a\u064a\u0627\u0631 \u0627\u0644\u0635\u062d\u064a\u062d \u062f\u0631\u0627\u0633\u0629 \u0634\u0627\u0645\u0644\u0629 \u0644\u0639\u0648\u0627\u0645\u0644 \u0645\u062a\u0639\u062f\u062f\u0629. \u064a\u0633\u062a\u0643\u0634\u0641 \u0647\u0630\u0627 \u0627\u0644\u062f\u0644\u064a\u0644 \u0627\u0633\u062a\u0631\u0627\u062a\u064a\u062c\u064a\u0627\u062a \u0627\u062e\u062a\u064a\u0627\u0631 \u0627\u0644\u0642\u0637\u0631 \u0644\u0636\u0645\u0627\u0646 \u0627\u0644\u062a\u0648\u0627\u0641\u0642 \u0627\u0644\u0623\u0645\u062b\u0644 \u0645\u0639 \u0645\u062a\u0637\u0644\u0628\u0627\u062a \u0627\u0644\u0645\u0634\u0631\u0648\u0639. &nbsp;<\/p>\n\n\n\n<p><strong>\u0644\u0645\u0627\u0630\u0627 \u0627\u0644\u0642\u0637\u0631 \u0645\u0647\u0645\u061f \u00a0<\/strong><\/p>\n\n\n\n<p>\u064a\u0639\u062f \u0627\u062e\u062a\u064a\u0627\u0631 \u0627\u0644\u0642\u0637\u0631 \u0627\u0644\u0635\u062d\u064a\u062d \u0623\u0645\u0631\u064b\u0627 \u062d\u064a\u0648\u064a\u064b\u0627 \u0644\u0623\u0646\u0647: &nbsp;<\/p>\n\n\n\n<p>\u062a\u0648\u0627\u0641\u0642 \u0627\u0644\u0645\u0631\u0627\u0641\u0642: \u063a\u0627\u0644\u0628\u064b\u0627 \u0645\u0627 \u062a\u062a\u0637\u0644\u0628 \u0627\u0644\u0634\u0628\u0643\u0627\u062a \u0627\u0644\u0635\u0646\u0627\u0639\u064a\u0629 \u0623\u0642\u0637\u0627\u0631\u064b\u0627 \u0623\u0643\u0628\u0631 \u0644\u0627\u0633\u062a\u064a\u0639\u0627\u0628 \u0627\u0644\u0645\u0639\u062f\u0627\u062a \u0627\u0644\u0636\u062e\u0645\u0629 \u062a\u062d\u062a \u0627\u0644\u0633\u0637\u062d &nbsp;<\/p>\n\n\n\n<p>\u0643\u0641\u0627\u0621\u0629 \u0627\u0644\u0635\u064a\u0627\u0646\u0629: \u064a\u0624\u062f\u064a \u062a\u062d\u062f\u064a\u062f \u0627\u0644\u062d\u062c\u0645 \u0627\u0644\u0645\u0646\u0627\u0633\u0628 \u0625\u0644\u0649 \u062a\u0633\u0631\u064a\u0639 \u0625\u0635\u0644\u0627\u062d\u0627\u062a \u0627\u0644\u0646\u0638\u0627\u0645 \u0628\u0645\u0642\u062f\u0627\u0631 \u226540% &nbsp;<\/p>\n\n\n\n<p>\u0627\u0644\u062a\u062d\u0643\u0645 \u0641\u064a \u0627\u0644\u062a\u0643\u0644\u0641\u0629: \u062a\u0624\u062f\u064a \u0627\u0644\u0623\u0642\u0637\u0627\u0631 \u063a\u064a\u0631 \u0627\u0644\u0635\u062d\u064a\u062d\u0629 \u0625\u0644\u0649 \u0632\u064a\u0627\u062f\u0629 \u0646\u0641\u0642\u0627\u062a \u0627\u0644\u0635\u064a\u0627\u0646\u0629 \u0628\u0645\u0642\u062f\u0627\u0631 25-35% \u0639\u0644\u0649 \u0645\u062f\u0627\u0631 \u062f\u0648\u0631\u0629 \u062d\u064a\u0627\u0629 \u0627\u0644\u0645\u0646\u062a\u062c &nbsp;<\/p>\n\n\n\n<figure class=\"wp-block-image size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"400\" height=\"400\" src=\"https:\/\/lzbmetal.com\/wp-content\/uploads\/2025\/05\/\u03c6700x35-\u94f8\u94c1\u5706\u4e95\u76d61.jpg\" alt=\"\" class=\"wp-image-627\" srcset=\"https:\/\/lzbmetal.com\/wp-content\/uploads\/2025\/05\/\u03c6700x35-\u94f8\u94c1\u5706\u4e95\u76d61.jpg 400w, https:\/\/lzbmetal.com\/wp-content\/uploads\/2025\/05\/\u03c6700x35-\u94f8\u94c1\u5706\u4e95\u76d61-300x300.jpg 300w, https:\/\/lzbmetal.com\/wp-content\/uploads\/2025\/05\/\u03c6700x35-\u94f8\u94c1\u5706\u4e95\u76d61-150x150.jpg 150w, https:\/\/lzbmetal.com\/wp-content\/uploads\/2025\/05\/\u03c6700x35-\u94f8\u94c1\u5706\u4e95\u76d61-12x12.jpg 12w\" sizes=\"auto, (max-width: 400px) 100vw, 400px\" \/><\/figure>\n\n\n\n<p><strong>\u0627\u0644\u0639\u0644\u0627\u0642\u0629 \u0628\u064a\u0646 \u0627\u0644\u0642\u0637\u0631 \u0648\u0627\u0644\u0633\u0644\u0627\u0645\u0629 \u00a0<\/strong><\/p>\n\n\n\n<p>\u064a\u0624\u062b\u0631 \u0627\u0644\u0642\u0637\u0631 \u0628\u0634\u0643\u0644 \u0645\u0628\u0627\u0634\u0631 \u0639\u0644\u0649 \u0633\u0644\u0627\u0645\u0629 \u0627\u0644\u0628\u0646\u064a\u0629 \u0627\u0644\u062a\u062d\u062a\u064a\u0629: &nbsp;<\/p>\n\n\n\n<p>\u062a\u062a\u0639\u0631\u0636 \u0627\u0644\u0623\u063a\u0637\u064a\u0629 \u0630\u0627\u062a \u0627\u0644\u062d\u062c\u0645 \u0627\u0644\u0635\u063a\u064a\u0631 \u0644\u062e\u0637\u0631 \u0627\u0644\u0627\u0646\u0647\u064a\u0627\u0631 \u062a\u062d\u062a \u0627\u0644\u0623\u062d\u0645\u0627\u0644 \u0627\u0644\u062a\u0635\u0645\u064a\u0645\u064a\u0629 (\u0639\u0644\u0649 \u0633\u0628\u064a\u0644 \u0627\u0644\u0645\u062b\u0627\u0644\u060c \u064a\u062a\u0637\u0644\u0628 EN124 D400 \u062d\u062c\u0645\u064b\u0627 \u0623\u0643\u0628\u0631 \u0645\u0646 \u0623\u0648 \u064a\u0633\u0627\u0648\u064a 600 \u0645\u0645 \u0644\u0633\u0639\u0629 40 \u0637\u0646\u064b\u0627) &nbsp;<\/p>\n\n\n\n<p>\u062a\u0624\u062f\u064a \u0627\u0644\u0623\u063a\u0637\u064a\u0629 \u0643\u0628\u064a\u0631\u0629 \u0627\u0644\u062d\u062c\u0645 \u0625\u0644\u0649 \u062a\u0639\u0631\u064a\u0636 \u0627\u0633\u062a\u0642\u0631\u0627\u0631 \u0627\u0644\u0625\u0637\u0627\u0631 \u0644\u0644\u062e\u0637\u0631\u060c \u0645\u0645\u0627 \u064a\u0632\u064a\u062f \u0645\u0646 \u0645\u062e\u0627\u0637\u0631 \u0627\u0644\u0625\u0632\u0627\u062d\u0629 &nbsp;<\/p>\n\n\n\n<p>\u0627\u0644\u0623\u0642\u0637\u0627\u0631 \u0627\u0644\u0645\u062b\u0627\u0644\u064a\u0629 \u062a\u0639\u0645\u0644 \u0639\u0644\u0649 \u0645\u0648\u0627\u0632\u0646\u0629 \u062a\u0648\u0632\u064a\u0639 \u0627\u0644\u062d\u0645\u0644 \u0639\u0628\u0631 \u062d\u0644\u0642\u0627\u062a \u0627\u0644\u062f\u0639\u0645 &nbsp;<\/p>\n\n\n\n<p><strong>\u0627\u0644\u0627\u0639\u062a\u0628\u0627\u0631\u0627\u062a \u0627\u0644\u0645\u0627\u062f\u064a\u0629 \u00a0<\/strong><\/p>\n\n\n\n<p>\u062e\u0635\u0627\u0626\u0635 \u0627\u0644\u0645\u0648\u0627\u062f \u062a\u0624\u062b\u0631 \u0639\u0644\u0649 \u0627\u062e\u062a\u064a\u0627\u0631 \u0627\u0644\u0642\u0637\u0631: &nbsp;<\/p>\n\n\n\n<p>\u0627\u0644\u062d\u062f\u064a\u062f \u0627\u0644\u0645\u0637\u0627\u0648\u0639: \u0627\u0644\u0623\u0641\u0636\u0644 \u0644\u0644\u0623\u0642\u0637\u0627\u0631 \u0645\u0646 600 \u0625\u0644\u0649 800 \u0645\u0645 \u0641\u064a \u0627\u0644\u0637\u0631\u0642 \u0627\u0644\u0633\u0631\u064a\u0639\u0629\/\u0627\u0644\u0645\u0637\u0627\u0631\u0627\u062a (EN124 F900) &nbsp;<\/p>\n\n\n\n<p>\u0627\u0644\u0645\u0631\u0643\u0628\u0627\u062a: \u0645\u062b\u0627\u0644\u064a\u0629 \u0644\u0645\u0646\u0627\u0637\u0642 \u0627\u0644\u0645\u0634\u0627\u0629 \u0627\u0644\u062a\u064a \u064a\u0628\u0644\u063a \u0639\u0631\u0636\u0647\u0627 500-700 \u0645\u0645 (30% \u0623\u062e\u0641 \u0645\u0646 \u0627\u0644\u062d\u062f\u064a\u062f) &nbsp;<\/p>\n\n\n\n<p>\u0627\u0644\u0628\u0648\u0644\u064a\u0645\u0631\u0627\u062a: \u0645\u0646\u0627\u0633\u0628\u0629 \u0644\u0644\u0623\u062d\u0632\u0645\u0629 \u0627\u0644\u062e\u0636\u0631\u0627\u0621 \u0627\u0644\u062a\u064a \u064a\u0628\u0644\u063a \u0637\u0648\u0644\u0647\u0627 400-600 \u0645\u0645 &nbsp;<\/p>\n\n\n\n<p><strong>\u0627\u0644\u0627\u0645\u062a\u062b\u0627\u0644 \u0627\u0644\u062a\u0646\u0638\u064a\u0645\u064a \u00a0<\/strong><\/p>\n\n\n\n<p>\u0627\u0644\u0627\u0644\u062a\u0632\u0627\u0645 \u0628\u0627\u0644\u0645\u0639\u0627\u064a\u064a\u0631 \u0627\u0644\u0625\u0642\u0644\u064a\u0645\u064a\u0629: &nbsp;<\/p>\n\n\n\n<p>1. EN124 (\u0623\u0648\u0631\u0648\u0628\u0627)\u060c \u0623\u0648 AASHTO (\u0627\u0644\u0648\u0644\u0627\u064a\u0627\u062a \u0627\u0644\u0645\u062a\u062d\u062f\u0629)\u060c \u0623\u0648 GB\/T 23858 (\u0627\u0644\u0635\u064a\u0646) &nbsp;<\/p>\n\n\n\n<p>2. \u0627\u0644\u062d\u062f \u0627\u0644\u0623\u062f\u0646\u0649 \u0644\u0644\u0642\u0637\u0631 \u062d\u0633\u0628 \u0627\u0644\u062d\u0645\u0644 (\u0639\u0644\u0649 \u0633\u0628\u064a\u0644 \u0627\u0644\u0645\u062b\u0627\u0644\u060c 700 \u0645\u0645 \u0644\u0623\u062d\u0645\u0627\u0644 60 \u0637\u0646\u064b\u0627) &nbsp;<\/p>\n\n\n\n<p>3. \u0625\u0637\u0627\u0631\u0627\u062a \u0642\u0627\u0628\u0644\u0629 \u0644\u0644\u062a\u0639\u062f\u064a\u0644 \u062a\u0633\u0645\u062d \u0628\u062a\u0639\u062f\u064a\u0644\u0627\u062a \u00b150 \u0645\u0645 \u0628\u0639\u062f \u0627\u0644\u062a\u062b\u0628\u064a\u062a &nbsp;<\/p>\n\n\n\n<p><strong>\u062a\u0635\u0645\u064a\u0645 \u0645\u0631\u064a\u062d \u00a0<\/strong><\/p>\n\n\n\n<p>\u064a\u0624\u062b\u0631 \u0627\u0644\u0642\u0637\u0631 \u0639\u0644\u0649 \u0643\u0641\u0627\u0621\u0629 \u0627\u0644\u0635\u064a\u0627\u0646\u0629: &nbsp;<\/p>\n\n\n\n<p>600 \u0645\u0645: \u0627\u0644\u062d\u062f \u0627\u0644\u0623\u062f\u0646\u0649 \u0645\u0646 \u0627\u0644\u0648\u0635\u0648\u0644 \u0627\u0644\u0622\u0645\u0646 \u0644\u0644\u0641\u0646\u064a &nbsp;<\/p>\n\n\n\n<p>700-800 \u0645\u0645: \u0646\u0637\u0627\u0642 \u0645\u0631\u0648\u0631 \u0627\u0644\u0645\u0639\u062f\u0627\u062a \u0627\u0644\u0623\u0645\u062b\u0644 &nbsp;<\/p>\n\n\n\n<p>&gt;900 \u0645\u0645: \u0632\u064a\u0627\u062f\u0627\u062a \u063a\u064a\u0631 \u0636\u0631\u0648\u0631\u064a\u0629 \u0641\u064a \u0627\u0644\u062a\u0643\u0644\u0641\u0629 (\u062a\u0631\u0643\u064a\u0628 \u0623\u0639\u0644\u0649 \u0628\u0645\u0642\u062f\u0627\u0631 18%) &nbsp;<\/p>\n\n\n\n<figure class=\"wp-block-image size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"800\" height=\"800\" src=\"https:\/\/lzbmetal.com\/wp-content\/uploads\/2025\/05\/1741074352576425.jpg\" alt=\"\" class=\"wp-image-576\" srcset=\"https:\/\/lzbmetal.com\/wp-content\/uploads\/2025\/05\/1741074352576425.jpg 800w, https:\/\/lzbmetal.com\/wp-content\/uploads\/2025\/05\/1741074352576425-300x300.jpg 300w, https:\/\/lzbmetal.com\/wp-content\/uploads\/2025\/05\/1741074352576425-150x150.jpg 150w, https:\/\/lzbmetal.com\/wp-content\/uploads\/2025\/05\/1741074352576425-768x768.jpg 768w, https:\/\/lzbmetal.com\/wp-content\/uploads\/2025\/05\/1741074352576425-12x12.jpg 12w\" sizes=\"auto, (max-width: 800px) 100vw, 800px\" \/><\/figure>\n\n\n\n<p><strong>\u0627\u062e\u062a\u064a\u0627\u0631 \u0627\u0644\u0634\u0631\u0643\u0629 \u0627\u0644\u0645\u0635\u0646\u0639\u0629 \u00a0<\/strong><\/p>\n\n\n\n<p>\u0627\u062e\u062a\u0631 \u0627\u0644\u0645\u0648\u0631\u062f\u064a\u0646 \u0627\u0644\u0630\u064a\u0646 \u064a\u0648\u0636\u062d\u0648\u0646: &nbsp;<\/p>\n\n\n\n<p>\u0634\u0647\u0627\u062f\u0627\u062a \u0627\u0644\u0637\u0631\u0641 \u0627\u0644\u062b\u0627\u0644\u062b (\u062a\u062f\u0642\u064a\u0642 ISO 9001 \u0648EN124) &nbsp;<\/p>\n\n\n\n<p>\u0642\u062f\u0631\u0627\u062a \u062a\u062d\u0644\u064a\u0644 \u062a\u0648\u0632\u064a\u0639 \u0627\u0644\u062d\u0645\u0644 \u0627\u0644\u062d\u0633\u0627\u0628\u064a &nbsp;<\/p>\n\n\n\n<p>\u0625\u0646\u062a\u0627\u062c \u0627\u0644\u0642\u0637\u0631 \u0627\u0644\u0645\u062e\u0635\u0635 (\u0627\u0644\u062a\u0633\u0627\u0645\u062d \u00b110 \u0645\u0645) &nbsp;<\/p>\n\n\n\n<p>\u0633\u062c\u0644 \u062d\u0627\u0641\u0644 \u0641\u064a \u0627\u0644\u062a\u0637\u0628\u064a\u0642\u0627\u062a \u0627\u0644\u0645\u0633\u062a\u0647\u062f\u0641\u0629 &nbsp;<\/p>\n\n\n\n<p><strong>\u062e\u0627\u062a\u0645\u0629 \u00a0<\/strong><\/p>\n\n\n\n<p>\u064a\u062a\u0637\u0644\u0628 \u0627\u062e\u062a\u064a\u0627\u0631 \u0627\u0644\u0642\u0637\u0631 \u0627\u0644\u0623\u0645\u062b\u0644 \u0645\u0627 \u064a\u0644\u064a: &nbsp;<\/p>\n\n\n\n<p>\u2460 \u0642\u064a\u0627\u0633 \u0623\u0628\u0639\u0627\u062f \u0627\u0644\u0645\u0639\u062f\u0627\u062a \u062a\u062d\u062a \u0627\u0644\u0633\u0637\u062d\u064a\u0629 &nbsp;<\/p>\n\n\n\n<p>\u2461 \u0627\u0644\u062a\u062d\u0642\u0642 \u0645\u0646 \u0645\u0635\u0641\u0648\u0641\u0627\u062a \u0627\u0644\u062d\u0645\u0644 \u0648\u0627\u0644\u0642\u0637\u0631 \u0627\u0644\u062a\u0646\u0638\u064a\u0645\u064a\u0629 &nbsp;<\/p>\n\n\n\n<p>\u2462 \u0627\u0644\u0634\u0631\u0627\u0643\u0629 \u0645\u0639 \u0627\u0644\u0634\u0631\u0643\u0627\u062a \u0627\u0644\u0645\u0635\u0646\u0639\u0629 \u0627\u0644\u0645\u0639\u062a\u0645\u062f\u0629 &nbsp;<\/p>\n\n\n\n<p>\u062a\u064f\u062e\u0641\u0651\u0636 \u0627\u0644\u0623\u063a\u0637\u064a\u0629 \u0630\u0627\u062a \u0627\u0644\u062d\u062c\u0645 \u0627\u0644\u0645\u0646\u0627\u0633\u0628 \u062a\u0643\u0627\u0644\u064a\u0641 \u0627\u0644\u0639\u0645\u0631 \u0627\u0644\u0627\u0641\u062a\u0631\u0627\u0636\u064a \u0628\u0645\u0642\u062f\u0627\u0631 30% \u0645\u0639 \u0636\u0645\u0627\u0646 \u0627\u0644\u0633\u0644\u0627\u0645\u0629. \u0627\u0633\u062a\u0634\u0631 \u062f\u0627\u0626\u0645\u064b\u0627 \u0645\u0647\u0646\u062f\u0633\u064a\u0646 \u0645\u0624\u0647\u0644\u064a\u0646 \u0644\u0645\u0634\u0627\u0631\u064a\u0639 \u0627\u0644\u0628\u0646\u064a\u0629 \u0627\u0644\u062a\u062d\u062a\u064a\u0629 \u0627\u0644\u062d\u064a\u0648\u064a\u0629\u060c \u0641\u062f\u0642\u0629 \u062a\u062d\u062f\u064a\u062f \u0627\u0644\u0642\u0637\u0631 \u062a\u064f\u0639\u062f\u0651 \u0623\u0633\u0627\u0633\u064b\u0627 \u0644\u0645\u0631\u0648\u0646\u0629 \u0627\u0644\u0645\u0646\u0627\u0637\u0642 \u0627\u0644\u062d\u0636\u0631\u064a\u0629.<\/p>","protected":false},"excerpt":{"rendered":"<p>In modern construction and urban planning, manhole covers serve critical functions by providing access to underground utilities while preventing unauthorized entry. When selecting covers for production, diameter is a key parameter influencing functionality, safety, and structural durability. Though seemingly simple, proper selection requires comprehensive consideration of multiple factors. This guide explores diameter selection strategies to [&hellip;]<\/p>\n","protected":false},"author":2,"featured_media":909,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[114,63],"class_list":["post-908","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-news","tag-luzhongbao","tag-manhole-cover"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v28.1 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>How to Select Manhole Cover Diameters for Production-How to buy Manhole Cover - Luzhongbao<\/title>\n<meta name=\"description\" content=\"In modern construction and urban planning, manhole covers serve critical functions by providing access to underground utilities while preventing unauthorized entry. 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