... of round operation, reliable joints.Application1.Applicable to industrial and civil construction roofing, underground and other ... and water has the special requirements of industrial building.Storage instructions1. When storage and transport, different types, specifications of ... 29,Wuxiaoqiao Street,Tianhe Dist,Guangzhou,Guangdong,China.Mobile:0086-18680531938Tel: 0086-20-87016250Fax:0086-20- ...