{"id":1314,"date":"2025-10-22T10:43:00","date_gmt":"2025-10-22T10:43:00","guid":{"rendered":"https:\/\/luzhongbao.com\/?p=1314"},"modified":"2025-10-23T06:13:36","modified_gmt":"2025-10-23T06:13:36","slug":"mengapa-penutup-lubang-got-melingkar-besi-ulet-luzhongbao-36-inci-telah-menjadi-pilihan-utama-untuk-teknik-kota","status":"publish","type":"post","link":"https:\/\/luzhongbao.com\/id\/mengapa-penutup-lubang-got-melingkar-besi-ulet-luzhongbao-36-inci-telah-menjadi-pilihan-utama-untuk-teknik-kota\/","title":{"rendered":"Mengapa Penutup Lubang Got Bundar Besi Ulet Luzhongbao 36 inci Menjadi Pilihan Utama untuk Teknik Kota"},"content":{"rendered":"

Dalam sistem jaringan jalan perkotaan dan pipa bawah tanah, penutup lubang got, sebagai simpul penting yang menghubungkan fasilitas permukaan dan bawah tanah, berdampak langsung pada keselamatan jalan, efisiensi lalu lintas, dan biaya pemeliharaan. Penutup lubang got tradisional seringkali menjadi kendala dalam rekayasa perkotaan dengan masalah-masalah seperti kekuatan yang kurang memadai, kerentanan terhadap penurunan, tingkat kebisingan yang tinggi, atau kinerja anti-pencurian yang buruk. Penutup Lubang Got Bundar Besi Ductile Luzhongbao berukuran 36 inci (sekitar 914 mm), yang memanfaatkan keunggulan material besi ductile dan inovasi struktural, berhasil mengatasi masalah-masalah ini melalui teknologi pengecoran presisi tinggi dan desain anti-penurunan, dan kini telah menjadi produk pilihan untuk skenario tugas berat seperti jalan arteri perkotaan, jalan tol, dan kawasan industri.<\/p>\n\n\n

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Penutup ini sepenuhnya mematuhi standar GB\/T 23858-2009, menggunakan besi ulet kelas QT500-7 (kekuatan tarik \u2265 500 MPa, perpanjangan \u2265 7%). Mikrostruktur grafitnya yang sferoidal memberikan kekuatan dan ketangguhan material yang mendekati baja. Desain berdiameter 36 inci sepenuhnya menyeimbangkan ruang operasi dan stabilitas struktural. Penutup dan rangkanya dilengkapi strip penyegel karet berbentuk T dalam alur berbentuk U, yang menghasilkan tiga fungsi sekaligus: peredam guncangan, pencegah kebisingan, dan penyegelan. Selain itu, permukaan penutup memiliki pola anti-selip yang ditinggikan (tinggi \u2265 3 mm), dan tepinya dilengkapi dengan kunci dan engsel anti-maling, memastikan keamanan sekaligus mengurangi frekuensi perawatan dan biaya siklus hidup secara signifikan.<\/p>\n\n\n\n

Keunggulan Material: Nilai Inti Besi Ductile<\/h3>\n\n\n\n

Sifat mekanis besi ulet merupakan fondasi keandalan tinggi penutup ini. Dengan menambahkan agen sferoidisasi seperti tanah jarang dan magnesium, morfologi grafit berubah dari serpihan menjadi sferoid, memberikan material ini kekuatan tarik melebihi 420 MPa dan ketangguhan impak sepuluh kali lipat dari besi cor kelabu, sekaligus mempertahankan ketahanan korosi besi cor. Karakteristik ini memungkinkan penutup Luzhongbao menahan beban kelas D400 (lebih dari 40 ton), sehingga cocok untuk area berat seperti jalan tol perkotaan dan terminal barang. Dibandingkan dengan besi cor biasa, penutup besi ulet sekitar 30% lebih ringan namun memiliki efisiensi menahan beban yang lebih tinggi, mencapai tujuan industri untuk "mengganti baja dengan besi."<\/p>\n\n\n\n

Desain Struktural: Kombinasi Inovatif Bentuk Lingkaran dan Anti-Penyelesaian<\/h3>\n\n\n\n

Penutup lubang got melingkar merupakan solusi optimal untuk aplikasi perkotaan. Karakteristik sumbu simetrinya memastikan kesesuaian yang sempurna dengan bukaan lubang got, terlepas dari orientasi penempatannya, dan diameternya mendistribusikan beban secara merata, sehingga secara efektif menghindari risiko jatuh akibat kesalahan diagonal. Penutup Luzhongbao 36 inci semakin mengoptimalkan struktur rangka:<\/p>\n\n\n\n

Desain Anti-Penyelesaian: Bagian bawah rangka memperluas area penahan tekanan dan dipasang ke dasar jalan dengan baut jangkar, mencegah retaknya aspal di sekitar lubang got yang disebabkan oleh lalu lintas kendaraan.<\/p>\n\n\n\n

Teknologi Penyegelan Tiga Kali Lipat: Mengandalkan strip karet beralur U (EPDM tahan cuaca), paking logam, dan gesper pengunci otomatis untuk mencegah kebocoran air hujan dan luapan bau, mematuhi persyaratan konstruksi "Sponge City".<\/p>\n\n\n

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\"\"<\/figure><\/div>\n\n\n

Keamanan dan Daya Tahan: Jaminan Operasi Jangka Panjang<\/h3>\n\n\n\n

1. Keamanan Anti-pencurian: Penutup menggunakan sistem pengunci poros dan pin tetap, memerlukan alat khusus untuk membukanya, secara fisik mencegah pencurian ilegal.<\/p>\n\n\n\n

2. Umur Tahan Korosi: Ketahanan korosi bawaan besi ulet lima kali lipat lebih tinggi daripada pipa baja biasa. Dengan lapisan cat aspal antikarat pada permukaannya, umur desainnya dapat melebihi 50 tahun, bahkan di lingkungan korosif dengan agen anti-icing dan limbah.<\/p>\n\n\n\n

3. Ketahanan terhadap Kelelahan: Uji simulasi laboratorium menunjukkan tidak ada kerusakan struktural yang terjadi setelah 2 juta siklus pembebanan, dengan tingkat retensi beban dinamis melebihi 95%.<\/p>\n\n\n\n

Kenyamanan Konstruksi dan Manfaat Ekonomi<\/h3>\n\n\n\n

Desain modular secara signifikan meningkatkan efisiensi pemasangan. Rangkanya memiliki lubang baut yang telah ditentukan sebelumnya, memungkinkan pengaspalan dan penggulungan yang sinkron dengan perkerasan aspal, sehingga mengurangi waktu pengeringan beton konvensional. Meskipun biaya satuannya sedikit lebih tinggi daripada penutup jalan biasa, masa pakainya yang sangat panjang dan karakteristik perawatannya yang hampir nol mengurangi biaya siklus hidup keseluruhan lebih dari 30%. Mengambil contoh jalan arteri perkotaan, menghindari satu kali perbaikan dapat menghemat sekitar ribuan Yuan dalam biaya langsung dan biaya tidak langsung untuk pengendalian lalu lintas.<\/p>\n\n\n\n

Skenario Aplikasi dan Kompatibilitas Standardisasi<\/h3>\n\n\n\n

Diameter 36 inci memenuhi kebutuhan sebagian besar jaringan pipa kota:<\/p>\n\n\n\n

Sistem Drainase: Titik akses utama untuk ruang inspeksi air hujan dan saluran pembuangan.<\/p>\n\n\n\n

Utilitas Umum: Penutup pelindung untuk lubang kabel listrik dan komunikasi.<\/p>\n\n\n\n

Area Khusus: Skenario tugas berat seperti landasan pacu bandara, galangan kapal yang memerlukan mutu F900 (model penguat khusus mungkin diperlukan).<\/p>\n\n\n\n

Dimensinya mematuhi spesifikasi diameter poros yang umum secara internasional, dan dapat beradaptasi dengan renovasi jaringan pipa yang ada maupun proyek konstruksi baru.<\/p>\n\n\n

\n
\"\"<\/figure><\/div>\n\n\n

Ringkasan<\/h3>\n\n\n\n

Kesuksesan Penutup Lubang Got Bundar Besi Ulet Luzhongbao 36 inci berawal dari integrasi mendalam antara ilmu material, mekanika struktur, dan praktik rekayasa. Daya dukungnya yang luar biasa, daya tahan jangka panjang, konstruksi yang praktis, dan manfaat ekonominya menjadi dasar rasional pemilihannya dalam rekayasa perkotaan. Di tengah pesatnya urbanisasi saat ini, pemilihan produk ini bukan hanya keputusan teknis untuk menjamin keselamatan publik, tetapi juga investasi strategis yang mendorong pembangunan infrastruktur berkelanjutan.<\/p>","protected":false},"excerpt":{"rendered":"

Dalam sistem jaringan jalan perkotaan dan pipa bawah tanah, penutup lubang got, sebagai simpul penting yang menghubungkan fasilitas permukaan dan bawah tanah, berdampak langsung pada keselamatan jalan, efisiensi lalu lintas, dan biaya pemeliharaan. Penutup lubang got tradisional seringkali mengganggu teknik sipil dengan masalah-masalah seperti kekuatan yang tidak memadai, kerentanan terhadap penurunan, tingkat kebisingan yang tinggi, atau kinerja anti-pencurian yang buruk. Luzhongbao 36 inci (sekitar 914 [\u2026]<\/p>","protected":false},"author":2,"featured_media":1202,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[126,114,63],"class_list":["post-1314","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-news","tag-ductile-cast-iron","tag-luzhongbao","tag-manhole-cover"],"yoast_head":"\nWhy Luzhongbao 36-inch Ductile Iron Circular Manhole Cover Has Become the Mainstream Choice for Municipal Engineering News - Hubei Luzhongbao Metal Products Co., Ltd<\/title>\n<meta name=\"description\" content=\"In urban road and underground pipeline network systems, manhole covers, as critical nodes connecting the surface and underground facilities, directly impact road safety, traffic efficiency, and maintenance costs. Traditional manhole covers often plague municipal engineering with problems such as insufficient strength, susceptibility to settlement, high noise, or poor anti-theft performance. The Luzhongbao 36-inch (approximately 914 mm) Ductile Iron Circular Manhole Cover, leveraging the material advantages of ductile iron and structural innovation, successfully addresses these pain points through high-precision casting technology and anti-settlement design, and has now become the product of choice for heavy-duty scenarios like urban arterial roads, expressways, and industrial parks.\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/luzhongbao.com\/id\/mengapa-penutup-lubang-got-melingkar-besi-ulet-luzhongbao-36-inci-telah-menjadi-pilihan-utama-untuk-teknik-kota\/\" \/>\n<meta property=\"og:locale\" content=\"id_ID\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Why Luzhongbao 36-inch Ductile Iron Circular Manhole Cover Has Become the Mainstream Choice for Municipal Engineering News - Hubei Luzhongbao Metal Products Co., Ltd\" \/>\n<meta property=\"og:description\" content=\"In urban road and underground pipeline network systems, manhole covers, as critical nodes connecting the surface and underground facilities, directly impact road safety, traffic efficiency, and maintenance costs. Traditional manhole covers often plague municipal engineering with problems such as insufficient strength, susceptibility to settlement, high noise, or poor anti-theft performance. The Luzhongbao 36-inch (approximately 914 mm) Ductile Iron Circular Manhole Cover, leveraging the material advantages of ductile iron and structural innovation, successfully addresses these pain points through high-precision casting technology and anti-settlement design, and has now become the product of choice for heavy-duty scenarios like urban arterial roads, expressways, and industrial parks.\" \/>\n<meta property=\"og:url\" content=\"https:\/\/luzhongbao.com\/id\/mengapa-penutup-lubang-got-melingkar-besi-ulet-luzhongbao-36-inci-telah-menjadi-pilihan-utama-untuk-teknik-kota\/\" \/>\n<meta property=\"og:site_name\" content=\"Hubei Luzhongbao Metal Products Co., Ltd\" \/>\n<meta property=\"article:published_time\" content=\"2025-10-22T10:43:00+00:00\" \/>\n<meta property=\"article:modified_time\" content=\"2025-10-23T06:13:36+00:00\" \/>\n<meta property=\"og:image\" content=\"https:\/\/luzhongbao.com\/wp-content\/uploads\/2025\/09\/\u5fae\u4fe1\u56fe\u7247_20250905163241_72.jpg\" \/>\n\t<meta property=\"og:image:width\" content=\"1920\" \/>\n\t<meta property=\"og:image:height\" content=\"1081\" \/>\n\t<meta property=\"og:image:type\" content=\"image\/jpeg\" \/>\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=\"Ditulis oleh\" \/>\n\t<meta name=\"twitter:data1\" content=\"luzhongbao\" \/>\n\t<meta name=\"twitter:label2\" content=\"Estimasi waktu membaca\" \/>\n\t<meta name=\"twitter:data2\" content=\"5 menit\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\\\/\\\/schema.org\",\"@graph\":[{\"@type\":\"Article\",\"@id\":\"https:\\\/\\\/luzhongbao.com\\\/why-luzhongbao-36-inch-ductile-iron-circular-manhole-cover-has-become-the-mainstream-choice-for-municipal-engineering\\\/#article\",\"isPartOf\":{\"@id\":\"https:\\\/\\\/luzhongbao.com\\\/why-luzhongbao-36-inch-ductile-iron-circular-manhole-cover-has-become-the-mainstream-choice-for-municipal-engineering\\\/\"},\"author\":{\"name\":\"luzhongbao\",\"@id\":\"https:\\\/\\\/luzhongbao.com\\\/#\\\/schema\\\/person\\\/e22c08e75b650a9d574f5aeabb3db2cf\"},\"headline\":\"Why Luzhongbao 36-inch Ductile Iron Circular Manhole Cover Has Become the Mainstream Choice for Municipal Engineering\",\"datePublished\":\"2025-10-22T10:43:00+00:00\",\"dateModified\":\"2025-10-23T06:13:36+00:00\",\"mainEntityOfPage\":{\"@id\":\"https:\\\/\\\/luzhongbao.com\\\/why-luzhongbao-36-inch-ductile-iron-circular-manhole-cover-has-become-the-mainstream-choice-for-municipal-engineering\\\/\"},\"wordCount\":778,\"commentCount\":0,\"image\":{\"@id\":\"https:\\\/\\\/luzhongbao.com\\\/why-luzhongbao-36-inch-ductile-iron-circular-manhole-cover-has-become-the-mainstream-choice-for-municipal-engineering\\\/#primaryimage\"},\"thumbnailUrl\":\"https:\\\/\\\/luzhongbao.com\\\/wp-content\\\/uploads\\\/2025\\\/09\\\/\u5fae\u4fe1\u56fe\u7247_20250905163241_72.jpg\",\"keywords\":[\"Ductile Cast Iron\",\"Luzhongbao\",\"Manhole Cover\"],\"articleSection\":[\"News\"],\"inLanguage\":\"id\",\"potentialAction\":[{\"@type\":\"CommentAction\",\"name\":\"Comment\",\"target\":[\"https:\\\/\\\/luzhongbao.com\\\/why-luzhongbao-36-inch-ductile-iron-circular-manhole-cover-has-become-the-mainstream-choice-for-municipal-engineering\\\/#respond\"]}]},{\"@type\":\"WebPage\",\"@id\":\"https:\\\/\\\/luzhongbao.com\\\/why-luzhongbao-36-inch-ductile-iron-circular-manhole-cover-has-become-the-mainstream-choice-for-municipal-engineering\\\/\",\"url\":\"https:\\\/\\\/luzhongbao.com\\\/why-luzhongbao-36-inch-ductile-iron-circular-manhole-cover-has-become-the-mainstream-choice-for-municipal-engineering\\\/\",\"name\":\"Why Luzhongbao 36-inch Ductile Iron Circular Manhole Cover Has Become the Mainstream Choice for Municipal Engineering News - Hubei Luzhongbao Metal Products Co., Ltd\",\"isPartOf\":{\"@id\":\"https:\\\/\\\/luzhongbao.com\\\/#website\"},\"primaryImageOfPage\":{\"@id\":\"https:\\\/\\\/luzhongbao.com\\\/why-luzhongbao-36-inch-ductile-iron-circular-manhole-cover-has-become-the-mainstream-choice-for-municipal-engineering\\\/#primaryimage\"},\"image\":{\"@id\":\"https:\\\/\\\/luzhongbao.com\\\/why-luzhongbao-36-inch-ductile-iron-circular-manhole-cover-has-become-the-mainstream-choice-for-municipal-engineering\\\/#primaryimage\"},\"thumbnailUrl\":\"https:\\\/\\\/luzhongbao.com\\\/wp-content\\\/uploads\\\/2025\\\/09\\\/\u5fae\u4fe1\u56fe\u7247_20250905163241_72.jpg\",\"datePublished\":\"2025-10-22T10:43:00+00:00\",\"dateModified\":\"2025-10-23T06:13:36+00:00\",\"author\":{\"@id\":\"https:\\\/\\\/luzhongbao.com\\\/#\\\/schema\\\/person\\\/e22c08e75b650a9d574f5aeabb3db2cf\"},\"description\":\"In urban road and underground pipeline network systems, manhole covers, as critical nodes connecting the surface and underground facilities, directly impact road safety, traffic efficiency, and maintenance costs. 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Berita - Hubei Luzhongbao Metal Products Co., Ltd","description":"Dalam sistem jaringan jalan perkotaan dan pipa bawah tanah, penutup lubang got, sebagai simpul penting yang menghubungkan fasilitas permukaan dan bawah tanah, berdampak langsung pada keselamatan jalan, efisiensi lalu lintas, dan biaya pemeliharaan. Penutup lubang got tradisional seringkali menjadi kendala dalam rekayasa perkotaan dengan masalah-masalah seperti kekuatan yang kurang memadai, kerentanan terhadap penurunan, tingkat kebisingan yang tinggi, atau kinerja anti-pencurian yang buruk. Penutup Lubang Got Bundar Besi Ductile Luzhongbao berukuran 36 inci (sekitar 914 mm), yang memanfaatkan keunggulan material besi ductile dan inovasi struktural, berhasil mengatasi masalah-masalah ini melalui teknologi pengecoran presisi tinggi dan desain anti-penurunan, dan kini telah menjadi produk pilihan untuk skenario tugas berat seperti jalan arteri perkotaan, jalan tol, dan kawasan industri.","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:\/\/luzhongbao.com\/id\/mengapa-penutup-lubang-got-melingkar-besi-ulet-luzhongbao-36-inci-telah-menjadi-pilihan-utama-untuk-teknik-kota\/","og_locale":"id_ID","og_type":"article","og_title":"Why Luzhongbao 36-inch Ductile Iron Circular Manhole Cover Has Become the Mainstream Choice for Municipal Engineering News - Hubei Luzhongbao Metal Products Co., Ltd","og_description":"In urban road and underground pipeline network systems, manhole covers, as critical nodes connecting the surface and underground facilities, directly impact road safety, traffic efficiency, and maintenance costs. Traditional manhole covers often plague municipal engineering with problems such as insufficient strength, susceptibility to settlement, high noise, or poor anti-theft performance. The Luzhongbao 36-inch (approximately 914 mm) Ductile Iron Circular Manhole Cover, leveraging the material advantages of ductile iron and structural innovation, successfully addresses these pain points through high-precision casting technology and anti-settlement design, and has now become the product of choice for heavy-duty scenarios like urban arterial roads, expressways, and industrial parks.","og_url":"https:\/\/luzhongbao.com\/id\/mengapa-penutup-lubang-got-melingkar-besi-ulet-luzhongbao-36-inci-telah-menjadi-pilihan-utama-untuk-teknik-kota\/","og_site_name":"Hubei Luzhongbao Metal Products Co., Ltd","article_published_time":"2025-10-22T10:43:00+00:00","article_modified_time":"2025-10-23T06:13:36+00:00","og_image":[{"width":1920,"height":1081,"url":"https:\/\/luzhongbao.com\/wp-content\/uploads\/2025\/09\/\u5fae\u4fe1\u56fe\u7247_20250905163241_72.jpg","type":"image\/jpeg"}],"author":"luzhongbao","twitter_card":"summary_large_image","twitter_creator":"@Levi_Luzhongbao","twitter_misc":{"Ditulis oleh":"luzhongbao","Estimasi waktu membaca":"5 menit"},"schema":{"@context":"https:\/\/schema.org","@graph":[{"@type":"Article","@id":"https:\/\/luzhongbao.com\/why-luzhongbao-36-inch-ductile-iron-circular-manhole-cover-has-become-the-mainstream-choice-for-municipal-engineering\/#article","isPartOf":{"@id":"https:\/\/luzhongbao.com\/why-luzhongbao-36-inch-ductile-iron-circular-manhole-cover-has-become-the-mainstream-choice-for-municipal-engineering\/"},"author":{"name":"luzhongbao","@id":"https:\/\/luzhongbao.com\/#\/schema\/person\/e22c08e75b650a9d574f5aeabb3db2cf"},"headline":"Why Luzhongbao 36-inch Ductile Iron Circular Manhole Cover Has Become the Mainstream Choice for Municipal Engineering","datePublished":"2025-10-22T10:43:00+00:00","dateModified":"2025-10-23T06:13:36+00:00","mainEntityOfPage":{"@id":"https:\/\/luzhongbao.com\/why-luzhongbao-36-inch-ductile-iron-circular-manhole-cover-has-become-the-mainstream-choice-for-municipal-engineering\/"},"wordCount":778,"commentCount":0,"image":{"@id":"https:\/\/luzhongbao.com\/why-luzhongbao-36-inch-ductile-iron-circular-manhole-cover-has-become-the-mainstream-choice-for-municipal-engineering\/#primaryimage"},"thumbnailUrl":"https:\/\/luzhongbao.com\/wp-content\/uploads\/2025\/09\/\u5fae\u4fe1\u56fe\u7247_20250905163241_72.jpg","keywords":["Ductile Cast Iron","Luzhongbao","Manhole Cover"],"articleSection":["News"],"inLanguage":"id","potentialAction":[{"@type":"CommentAction","name":"Comment","target":["https:\/\/luzhongbao.com\/why-luzhongbao-36-inch-ductile-iron-circular-manhole-cover-has-become-the-mainstream-choice-for-municipal-engineering\/#respond"]}]},{"@type":"WebPage","@id":"https:\/\/luzhongbao.com\/why-luzhongbao-36-inch-ductile-iron-circular-manhole-cover-has-become-the-mainstream-choice-for-municipal-engineering\/","url":"https:\/\/luzhongbao.com\/why-luzhongbao-36-inch-ductile-iron-circular-manhole-cover-has-become-the-mainstream-choice-for-municipal-engineering\/","name":"Mengapa Penutup Lubang Got Bundar Besi Ulet Luzhongbao 36 inci Menjadi Pilihan Utama untuk Teknik Kota? 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Penutup lubang got tradisional seringkali menjadi kendala dalam rekayasa perkotaan dengan masalah-masalah seperti kekuatan yang kurang memadai, kerentanan terhadap penurunan, tingkat kebisingan yang tinggi, atau kinerja anti-pencurian yang buruk. Penutup Lubang Got Bundar Besi Ductile Luzhongbao berukuran 36 inci (sekitar 914 mm), yang memanfaatkan keunggulan material besi ductile dan inovasi struktural, berhasil mengatasi masalah-masalah ini melalui teknologi pengecoran presisi tinggi dan desain anti-penurunan, dan kini telah menjadi produk pilihan untuk skenario tugas berat seperti jalan arteri perkotaan, jalan tol, dan kawasan industri.","breadcrumb":{"@id":"https:\/\/luzhongbao.com\/why-luzhongbao-36-inch-ductile-iron-circular-manhole-cover-has-become-the-mainstream-choice-for-municipal-engineering\/#breadcrumb"},"inLanguage":"id","potentialAction":[{"@type":"ReadAction","target":["https:\/\/luzhongbao.com\/why-luzhongbao-36-inch-ductile-iron-circular-manhole-cover-has-become-the-mainstream-choice-for-municipal-engineering\/"]}]},{"@type":"ImageObject","inLanguage":"id","@id":"https:\/\/luzhongbao.com\/why-luzhongbao-36-inch-ductile-iron-circular-manhole-cover-has-become-the-mainstream-choice-for-municipal-engineering\/#primaryimage","url":"https:\/\/luzhongbao.com\/wp-content\/uploads\/2025\/09\/\u5fae\u4fe1\u56fe\u7247_20250905163241_72.jpg","contentUrl":"https:\/\/luzhongbao.com\/wp-content\/uploads\/2025\/09\/\u5fae\u4fe1\u56fe\u7247_20250905163241_72.jpg","width":1920,"height":1081},{"@type":"BreadcrumbList","@id":"https:\/\/luzhongbao.com\/why-luzhongbao-36-inch-ductile-iron-circular-manhole-cover-has-become-the-mainstream-choice-for-municipal-engineering\/#breadcrumb","itemListElement":[{"@type":"ListItem","position":1,"name":"\u9996\u9875","item":"https:\/\/luzhongbao.com\/"},{"@type":"ListItem","position":2,"name":"Why Luzhongbao 36-inch Ductile Iron Circular Manhole Cover Has Become the Mainstream Choice for Municipal Engineering"}]},{"@type":"WebSite","@id":"https:\/\/luzhongbao.com\/#website","url":"https:\/\/luzhongbao.com\/","name":"Hubei Luzhongbao Produk Logam Co., Ltd","description":"Ahli Penutup Lubang Got yang Terpercaya Secara Global","potentialAction":[{"@type":"SearchAction","target":{"@type":"EntryPoint","urlTemplate":"https:\/\/luzhongbao.com\/?s={search_term_string}"},"query-input":{"@type":"PropertyValueSpecification","valueRequired":true,"valueName":"search_term_string"}}],"inLanguage":"id"},{"@type":"Person","@id":"https:\/\/luzhongbao.com\/#\/schema\/person\/e22c08e75b650a9d574f5aeabb3db2cf","name":"luzhongbao","image":{"@type":"ImageObject","inLanguage":"id","@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:\/\/luzhongbao.com\/id\/author\/luzhongbao\/"}]}},"_links":{"self":[{"href":"https:\/\/luzhongbao.com\/id\/wp-json\/wp\/v2\/posts\/1314","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/luzhongbao.com\/id\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/luzhongbao.com\/id\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/luzhongbao.com\/id\/wp-json\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/luzhongbao.com\/id\/wp-json\/wp\/v2\/comments?post=1314"}],"version-history":[{"count":1,"href":"https:\/\/luzhongbao.com\/id\/wp-json\/wp\/v2\/posts\/1314\/revisions"}],"predecessor-version":[{"id":1315,"href":"https:\/\/luzhongbao.com\/id\/wp-json\/wp\/v2\/posts\/1314\/revisions\/1315"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/luzhongbao.com\/id\/wp-json\/wp\/v2\/media\/1202"}],"wp:attachment":[{"href":"https:\/\/luzhongbao.com\/id\/wp-json\/wp\/v2\/media?parent=1314"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/luzhongbao.com\/id\/wp-json\/wp\/v2\/categories?post=1314"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/luzhongbao.com\/id\/wp-json\/wp\/v2\/tags?post=1314"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}