Chengdu manhole cover production and wholesale factory direct sales [complete specifications]
编辑：四川井盖厂家 时间：2019-05-15 Source: Unknown Editor: Sichuan Manhole Cover Manufacturer Time: 2019-05-15
Chengdu manhole cover production and wholesale factory direct sales [complete specifications], manhole cover is used to cover the defense on the road or in the deep well in the home. It is usually used to prevent people or things from falling down.
It is generally divided into circles and squares. In urban areas, circles are usually used because circular manhole covers are not easily inclined. Can better protect the safety of pedestrians and vehicles.
The main consideration is that the round manhole cover has the same length through each of its centers, so if the manhole cover is rolled up by passing vehicles, the diameter will be slightly wider than the wellhead below, and the manhole cover will not fall into the wellhead. Well rafts are used for road rainwater drainage, filtering road debris and preventing sewer blockages. Wells are used for road drainage.
There are a variety of manhole cover material standards in China, single layer, double layer, cast iron, ductile iron, composite materials, cement manhole covers, steel fiber manhole covers, cement manhole covers, etc. Rain tweezers are made of flat and twisted square or flat and flat steel. Rainwater tweezers have the advantages of beautiful appearance, good drainage performance, high strength, large specifications, and low cost. Generally, steel-type rainwater tweezers are used.
With the development of science and technology, resin or plastic rebar is used to make new composite water tweezers. The advantage is that it is lighter than cast iron water tweezers and is low cost. The disadvantage is that it is not as strong as cast iron water tweezers.
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