Resin composite material manhole cover has many provinces and cities such as: Jiangsu, Zhejiang, Jiangxi, Anhui, Fujian, Chongqing, Hubei, Hunan, Henan, Gansu, Guangxi, Guangdong, Shandong, Hebei, Shaanxi, Sichuan, Guizhou, Yunnan, Shanxi, Inner Mongolia, Jilin, Liaoning, Heilongjiang, Ningxia, Qinghai, and other provinces and cities with resin manhole cover instead of cast iron manhole cover, resin manhole cover has a lightweight, high strength, excellent anti-fatigue properties, The resin manhole cover has the advantages of light weight and high strength, excellent fatigue resistance, breakage safety, simple molding, low noise, good chemical resistance, good acid and alkali resistance and beautiful appearance. Its comprehensive performance and economic indicators have exceeded the cast iron manhole cover, but also to solve the problem of cast iron manhole cover theft. It can also reduce the consumption of resources and has important economic and social value. According to the requirements of the Ministry of Construction, "1998 Ministry of Construction Industrial Products Standard Formulation and Revision Project Plan" (Construction Standard [1998] No. 58), a company in Heilongjiang Province, prepared by the "recycled resin composite material inspection manhole cover" standard, after review, approved as an industry standard, No. CJ/T121-2000, since June 1, 2001 onwards.

Resin manhole cover is also developing gradually. Compared with other well covers, its advantages are as follows:{7777777} 1. Long service life. The use of high-performance resins, glass fibers and special production process formulations to ensure that the resin penetrates into the glass fibers, so that the material will not cause internal damage under cyclic use, thus ensuring its service life. {77777}2. Beautiful and practical. Zibo Best can be customized according to the customer's requirements of pattern pattern and color, the appearance is beautiful and generous.
3. High and low temperature resistance, good insulation, not easy to corrode. Without metal additives, it has real heat insulation effect and can be used in complex and changing environment.
4. Good bearing capacity. The bottom adopts special structure to increase the bearing area, so that the product has enough bearing capacity.
5. Environmentally friendly and non-slip. At the same time, due to the light weight of the product, the cover and seat of the accurate locking, to overcome the other manhole cover "jumping, jumping, ringing, moving" problem. Green in the production process, the surface pattern can play the role of anti-skid.