Malleable Iron Pipe Fitting, Grooved Pipe Fitting, Steel Pipe Fitting manufacturer / supplier in China, offering DN 50 304/316 Slip on Flange Plate Flange for Water Supply Pipeline System Connector, Carbon Steel Stainless Steel Slip on Flange Applied for Pipeline Connecting System, BS 4504 Standard Carbon Steel Stainless Steel Slip on Flange Used for Pipeline System and so on.