... HDPE sheet T-grip 1.Using area:Anti-corrosion, Waterproof,Concrete pipe liner 2.Wdith:1,1m and 2m Thickness:1.5mm- ... 5mm HDPE sheet T-grip Description1.T-lock is a ... lime which in the cement, breakdown the concrete pipes.T-lock is made of PE, PP, PVC. They ... to fabricate, market and/or utilize the products of T-lock & Arrow Lock and/or the equipment used ...