DN300 how long is it for water polo and iron pipes?
Blue interface cast iron pipe, blue fixed inner cushion rubber, blue gasket seal; rigid joint like cast iron pipe mouth, compared with straight pipe inserted cement sealing process, has been basically eliminated
Cast iron pipe (Cast Iron Pipe) with the cast iron casting pipe cast iron pipe for water supply and drainage gas pipeline pipe fittings including cast iron casting with fatigue strength by continuous cast iron pipe from the cast iron pipe from the cast iron pipe sand metal two according to material with grey cast iron pipe, ductile iron pipe at the interface with flexible sealing interface LAN interface, self anchored interface, interface of the rigid flexible cast iron pipes rubber ring;
