... Stainless Steel Flange 2.Material:Stainless Steel 3.Size:1/2"-40" 4.Pressure:PN6-PN160 5.Type :Flange 1. BS4504 304 316 Stainless Steel Flange2. Material:Stainless Steel ... the third party16. Used for : petroleum,chemical,power,gas,water,linepipe, heat exchanger,shipbuilding,construction,etc.17. Tolerance:not less ... by credibility,Quality first, Customer upmost . BS4504 304 316 Stainless Steel Flange