pipes, tubes and conduits; pipe connectors and connector sleeves; thermoplastic heat fusion pipe connectors and sleeves; parts and fittings for all the aforesaid goods, all made wholly or principally of plastics
Rubber Goodsnon-metallic building materials; pipes, tubes and conduits; pipe connectors and connector sleeves; thermoplastic heat fusion pipe connectors and sleeves; parts and fittings for all the aforesaid goods
Nonmetallic Building Materials