Flanges -ANSI B16.5 Welding Neck Size:1/2"-24",24''-80'' Thickness ... SCH10-XXS Material:Carbon Steel,Stainless Steel Flanges -ANSI B16.5 Welding Neck size 1/2" to 24" ASME B16 ... 2500Lbs, /PN6,PN10,PN16,PN20,PN25,PN40/ Class A, B, C, D, EstandardASME B16.5, ASME B16.47, ASME B16.36,DIN 86341 ... from AQSIQ , passed the Authentication of API and became a member of first – grade supply network of State Power ...