NEWS

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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...

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  Inquiry of Square Manhole Covers In Cambodia

  Manhole covers are a common facility in our life and are widely used. It is a seal product on the top of the entrance to the underground facilities. All place where install water, telecommunications, electricity, gas, heat, fire protection, sanitation and other public facilities need to install m...

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  What is the abnormal noise of cast iron well cover? How to deal with it?

  What is the abnormal noise of cast iron well cover? How to deal with it? The cast iron well cover makes abnormal noise. Of course, this is an abnormal situation. The sound is likely to be caused by damage to internal parts of the well cover or loosening of the well cover. Many people have not not...

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  Method to identify whether the well cover is damaged

  Well covers are indispensable in urban roads. The well covers in Shandong are damaged, which not only affects the comfort of vehicles Adaptability, but also caused a large potential safety hazard. How to identify whether it is damaged has become a problem we have to face. 1. If it is found tha...

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  How to prevent deformation of well cover during unloading

  As an indispensable product in our life, well covers are often transported to various places for use. However, in order to avoid unnecessary losses caused by product deformation and damage during unloading, the specific defense measures are as follows: 1. If the forklift is used for loading an...

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  Factors leading to the decline of bearing capacity of resin manhole cover

  In order to increase the service performance of the well cover, the manufacturer usually improves its bearing capacity in the production of the resin well cover, so as to increase its firmness. However, there are still some factors that will affect the bearing capacity of the well cover, so in or...

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  Explain the hardness analysis of resin manhole cover in detail

  The hardness of the resin well cover refers to the ability of the surface volume of the raw material of the product to resist deformation or cracking. According to different test methods, the physical meaning of the hardness value of the raw material of the product is also different, and its hard...

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