... FLANGES, YELLOW PAINT, ISO QUALIFIED, HTHIRED PARTY INSPECTED, HIGH QUALITY, PROMOTE DELIVERY For forged steel flanges, we supply per all ... standards such as GB, JB, HG and SH with all types. The pressure rating is from Class 25LB ... contain carbon steel, alloy steel, stainless steel and high alloy steel. The size range is from 1/2 ... pipeline engineering per ASME and API codes. HIGH QUALITY FLANGE