Zibo Best Energy-saving Materials Co., Ltd. was established in 2004, which is one of the largest composite manhole cover manufacturer in China, specializing in producing and supplying composite manhole cover, water grate, trench cover and cable cover. Our products are strictly produced according to the BS EN124 and have obtained various kinds of certificates.

Composite manhole cover with light weight, nature anti-theft and durable service life.
FRP manhole cover are ideal because they are non-conductive, corrosion resistant and have no secondary market value.
Our manhole cover controlled composite manhole covers have no secondary market value and so eliminate theft.
They are much lighter to life and reduce the risk of injuries during installation/maintenance.
They are also ideal for corrosive environments as they are unaffected by underground gases and most chemicals.
Composite manhole cover are available in standard classes and meet the requirements of the European standard BS EN124.