我们班男生都扒胸罩和内裤,马背上不停的撞击

15863505310
Home page Company Profile Product Resources Ductile iron manhole cover market Ductile iron manhole cover price Ductile iron manhole cover manufacturers Ductile Iron Manhole Cover Application area contact us

All product categories
Product categories

查看详情 Ductile iron manhole cover marketView details
查看详情 Ductile iron manhole cover quotes view details
查看详情 How much is nodular cast iron manhole coversee details
查看详情 Ductile iron manhole cover manufacturer product supply price view details
查看详情 Heavy Ductile Iron Manhole Cover Specifications
查看详情 Product details

about us

Ductile iron manhole cover manufacturers distribute various specifications of nodular cast iron manhole covers all year round . The sold nodular cast iron manhole covers are low in price and high in quality in the industry. Specializing in the production of gold cast iron manhole covers, five-proof cast iron manhole covers, rainwater rafters, flexible cast iron drainage pipes, cast iron light poles, cast iron seats; pipe fittings, pipe clamps and other casting products.

Ductile iron manhole covers are generally divided into circular and square. In urban road administration, circular is generally used because circular manhole covers are not easy to tilt and can better protect the safety of pedestrians and vehicles. The use of circular is mainly considered that the length of each diameter of the circular manhole cover through its center is the same, so if the manhole cover is rolled up by the passing vehicle, because the diameter will be slightly larger than the wellhead below, Wide, the manhole cover will not fall into the wellhead.

View details >>
Contact us
0635-8787003
15863505310
Shandong Liaocheng Economic Development Zone