tree grating

الوصف

The composite manhole covers and frames are made of fiberglass and unsaturated resin. They are renowned for their advanced features such as anti-theft, anti-corrosion, non-rocking and light weight. The features of composite manhole cover 1) Anti-theft Composite manhole covers and frames made of SMC (Sheet molding compound) material which is difficult to be recycled. 2) Light weight, easy to handle, install and maintain The weight of composite manhole cover is normally half to a third of the cast iron products. 3) High temperature endurability, anti-corrosion and anti-aging capabilities The raw material has a good thermostability, which can endure high temperature. It also has the anti-corrosion and anti-aging features. 4) Large loading capacity and non-rocking feature Less noise under traffic loads. 5) Rich colors The manhole covers can be made in various colors as per the customers??requirement. 6) High density Those composite manhole covers and frames are made under high temperature and high pressure. Their loading capacity conforms to the standard of CJ/T*******0.