... , 2.Cert:TUV,ISO9001:2000,NK,BV3.best quality,good service•High quality blind flange:Size: From DN 10 to DN ... special useMaterial: Carbon steel, stainless steel and alloy steelProcess: Free forging, plate cuttingOthers: (1)Special design available according to ... requirement (2) anti-corrosion and high-temperature resistant with black paintingWe manufacture all kinds of ...