... are with Features as below:Wafer Type Design, Dual Plate or Single Disc, Half Lug or Fully Lugged Types.Design & Manufacture: API ... ANSI 150, 300, 600, 900, 1500, 2500 End Connections: Flanged or Wafer TypesMaterials: Carbon Steel, Stainless Steel, Duplex, Alloy, Cast Iron ... and Ductile Iron etc.or Equivalent, Available also in low temperature steels, low alloy steels ...