Supplier: Technical plastic building industry materials, construction and infrastructure materials, 20x20 30x30 40x40 50x50 55x55 70x70 manhole boxes and cover, frames ,corrugated pipe covers,grating and filtered manhole covers, 80x90 90x100 covers, drainage channles,slot drainage channels,anti flooding check valves, floor drains,bathroom accessories; toilet seats, siphons, discharge hose, conduit clamps, shovels etc...
