... with ISO 2531, K9, L=6000mm, T-Type joints Ductile cast iron pipes in accordance with ISO 2531, K9, L=6000mm, T ... Externally Zinc + Bitumen painting according to ISO 8179-85 and Rubber Rings (SBR) in accordance with ISO 4633 Our main products ... Poly, PVC, Nylon injection parts.++Mold Design. Material available: Ductile Iron, Gray Iron, Stainless Steel, Carbon Steel, Alloy Steel, Brass Alloy, Aluminum ...