... , XXSStandard:ASTM , ASME, JIS, DIN, GB,BSMaterial:Carbon steel, Alloy steel , Stainless steelType:Blind flange, slip-on flange, welding neck flange, thread flange, socket welding flange,,,,,,QualificationISO ... :Petroleum, chemical, power, gas, metallurgy, constructionSpecial design available as requirementWelcome for your inquiry! A182 F316/316l Stainless Flanges