Pvc Elbow Material:PVC Standard:GB,ISO Advantages:High flow capacity, endurable, nontoxic,pressure proof,facilitating install Pvc ElbowMain charactricstics1. PVC-U is a ... , salts resistance, suitable for sewerage and industrial effluent disposal4. PVC-U is a combustion-proof material of grade B2 with ... industrial and civil high buildings2. Engineering project3. Agricultural irrigation Pvc Elbow 45