The 750 fold SMC composite manhole cover is made of polymer composite material and patented formula. It is molded at high temperature. The higher test result is more than 90 tons, which meets and exceeds the standard. It is classified, colored, wear-resistant, noise-free, strong pressure-bearing, easy to install and impact resistant according to the urban engineering design. 700smc composite material manhole cover, with lifting hole and adhesive tape, can replace the original cast iron manhole cover on the road without replacing the cast iron base, making the old municipal reconstruction more convenient and cost-effective. Our products have been exported to Europe and America, and have passed the test and approval of European independent lab. SMC manhole cover is made of sheet molding plastic, which has high strength through high temperature molding, and conforms to the GB / t23858-2009 executive standard of manhole cover industry. The sealant strip design plays the role of sealing and noise reduction. The stainless steel galvanized locking device is embedded to prevent the displacement of manhole cover and the well water pouring back into the manhole cover in flood season, which will cause the black hole accident on the road surface. The non hole design also plays the role of sealing and water leakage, preventing the damage of lifting hole directly. 700smc composite material manhole cover has lifting hole and no adhesive strip. Because the product is molded by high temperature, the joint gap of cover seat is small, which overcomes the problems of cast iron and cement manhole cover such as "running, jumping and ringing", and improves road traffic capacity and driving comfort.
SMC manhole cover is molded by sheet molding plastic with high strength at high temperature, which conforms to GB / t23858-2009 executive standard of manhole cover industry. The sealant strip design plays the role of sealing and noise reduction. The stainless steel galvanized locking device is embedded to prevent the displacement of manhole cover and the well water pouring back into the manhole cover in flood season, which causes the accident of black hole on the road surface!
