... FORGED STEEL FLANGES, YELLOW PAINT, ISO QUALIFIED, HTHIRED PARTY INSPECTED, HIGH QUALITY, PROMOTE DELIVERY For forged steel flanges, we supply per all ... 25LB to Class 2000LB in inch system and from PN0.25MPa to PN40MPa in metric system. The materials of the flange ... contain carbon steel, alloy steel, stainless steel and high alloy steel. The ...