... .Resistance to alkali 5.OEM manufacturer 1.Specification:1) Material: Ni200, Ni201, N2200, N2201 2)Standard: ASTM B160 3)Diameter: 3 ... rust. 3.We also manufacture these products:² titanium,nickel,zirconiumsheet/plate,tube/pipe,bar/rod: gr1,gr2,gr5,gr7,gr9,n4,n6 ... ,80*45,60*45² Titanium clad copper:Tu2,Tu3,sheet,bar,tube² Titanium,nickel,zirconium,chromium standard parts:DIN7984,6921 etc. .