Large Diameter Welded Flange Tianjin Yinyin International Trade Co., Ltd. Base Info Model NO.:ASMEB16.47B series ASME B16.47A seriesConnection:WeldingCertification:ISO and SGSTrademark:YYGJSpecification:ASTM, JIS, EN, DIN, GB,ISOOrigin:Tianjin, China Description Pre:321 Stainless Steel Flange Next:Lier-Metal Wire Coil Insert