... :ANSI;BS;DIN;ISO ProductFlange ,Steel flange,Carbon steel,carbon steel reducing pipe flangeSize15mm~600mmMaterialCarbon steel(20#,35#,45# etc),Stainless steel,Alloy steel,etcTypereducing flangePressure150lb ~ 3000lbStandardANSI,BS ... in water conservancy, electricity, power plants, pipe fittings, industrial, pressure vessels etc. The product is anti-corrosion,acid and alkalis resistant ...