China DIN2641/2642 HDPE/PVC Pipe/Stub Galvanized Backing Rings Loose Flange Cdfl548, Find details about China Stainless Steel Plate Flange, ANSI B16.5 Flat Flange from DIN2641/2642 HDPE/PVC Pipe/Stub Galvanized Backing Rings Loose Flange Cdfl548