... steel reducerCarbon steelASTM A234 WPB, WPC,ASTM A105 WPB;ASTM A106 reducer;ASTM A350,DIN St37.0, St45.8, ... GR.B, X42,ASTM A860,ASTM A694,ASTM A420 WPL6, WPL3,Stainless steelASTM A403 WP304, A403 WP304L, A403 WP316, A403 WP316L, A403 WP321ASTM A182 F ... 304, 304L,316, 316L,321, 904LAlloy steelASTM A234 WP12, A234 WP11, A234 WP22, A234 WP5,ASTM ...