... ,ISO Advantages:High flow capacity, endurable, nontoxic,pressure proof,facilitating in W.C. Connector:O/dia.: 110mm.Main charactricstics 1. PVC-U ... sewerage and industrial effluent disposal4. PVC-U is a combustion-proof material of grade B2 with high oxygen value, self extinguishing5 ... for industrial and civil high buildings2. Engineering project W.C. Connector