... with ISO 2531, K9, L=6000mm, T-Type joints Ductile cast iron pipes in accordance with ISO 2531, K9, L=6000mm, T ... Rubber Rings (SBR) in accordance with ISO 4633Our main products are:++Iron and Steel Sand castings,++Investment castings, Precision castings,Lost wax ... etc.With many years service experience in this area, our products are totally exported to oversea clients, and obtained very good ...