NEWS

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  What should be confirmed before climbing on a scaffold​

  Before climbing onto a scaffold, it’s crucial to confirm multiple safety and operational aspects to prevent accidents. Below is a detailed checklist categorized by key inspection areas:     I. Scaffold Structure & Assembly Checks Stability & Foundation ✅ Is the scaffold pl...

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  How heavy are manhole covers

  Manhole covers are designed to be durable, secure, and heavy enough to stay in place under traffic, weather, and accidental impacts. Their weight depends on material, size, and design, but here’s a breakdown: Standard Manhole Cover Weights Type Material Diameter Weight Range ...

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  What are the characteristics of system scaffolding​？

  Characteristics of System Scaffolding System scaffolding (also known as modular scaffolding or frame scaffolding) is a highly standardized temporary support structure widely used in construction, bridges, stage setups, and other fields. Its key features include: 1. Standardized & Mo...

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  What is a manhole cover

  Comprehensive Analysis of Manhole Covers 1. Basic Definition A manhole cover is a protective lid that seals access points to underground municipal infrastructure. Its primary functions include: Providing maintenance access Preventing accidental falls of people/objects Bearing veh...

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  Square manhole covers

  In urban roads, sidewalks, and various public facilities, manhole covers are indispensable safety protection components. Among them, square manhole covers are widely used in specific scenarios due to their unique structure and performance. This article will introduce the main uses, reasons for se...

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  How much does a manhole cover weigh​

  The weight of manhole covers varies depending on factors such as material, size, thickness, and purpose. The following are the weights of common manhole covers: Classification by material Cast iron manhole covers: DN300-400mm manhole covers weigh about 50-70kg; DN500-600mm about 80-120k...

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  Why are manhole covers round

  In daily life, we often see round manhole covers. Why are they designed to be round? There are several reasons: 1.Geometric characteristics Equal diameter: The diameter of a round manhole cover is fixed. No matter how it is rotated or placed, its diameter remains unchanged. This means tha...

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  Ductile iron manhole cover specifications, models and sizes

  Ductile iron manhole covers come in a variety of specifications, models and sizes. Here is a detailed introduction: Square ductile iron manhole covers: Common specifications: generally 600mm×600mm, 700mm×700mm, 800mm×800mm, etc. Common thickness: usually 60mm, 70mm, 80mm, etc. Applica...

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  Application, installation and maintenance of composite manhole cover materials

  The composite manhole cover has high strength, low price and beautiful appearance. It can be colored arbitrarily, is easy to install, maintain, and identify. Because it has no recycling value, it completely solves the problem of anti-theft. my country will gradually switch to composite manhole co...

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  The Development History of Composite Material Well Covers

  Development history (1) Its strength is second only to that of stone plastic manhole covers. Can carry vehicles weighing over 40 tons. (2) Its comprehensive performance is between that of stone plastic manhole covers and concrete manhole covers, superior to concrete; Can be applied in situa...

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  Ductile Iron Manhole Covers

  Recently, ductile iron manhole covers have become a hot topic. With its superior performance and reliable quality, this new technology has injected new impetus and innovation into urban construction and industrial production. Ductile iron manhole cover is a new type of covering, made of ductile ...

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  Ductile Iron Manhole Cover

  Recently, ductile iron manhole covers have become a hot topic. With its superior performance and reliable quality, this new technology has injected new impetus and innovation into urban construction and industrial production. Ductile iron manhole cover is a new type of covering, made of du...

  Read more