Rectangular sewage cover specification:
Outfitted with lock and screws, non-corrosive and rustproof.
Resistant for all chemical substances types, acids, and gases emitted from sewage drains.Absorbent for vibrations, stable on the ground, slip resistant and non-conductive to electricity.
Easy installation and handling and sealed firmly
No harmful or toxic substances material.
Square, round and rectangular type, the size of manhole cover also support customized. If you want to know more details, pls feel free to contact me directly.