... FLANGES, YELLOW PAINT, ISO QUALIFIED, HTHIRED PARTY INSPECTED, HIGH QUALITY, PROMOTE DELIVERY For forged steel flanges, we supply per all ... system. The materials of the flange contain carbon steel, alloy steel, stainless steel and high alloy steel. The size ... flanges like Long Welding Neck, Anchor, and Outlets for pressure equipment or pipeline engineering per ASME and API codes. HIGH QUALITY FLANGE