... 2.WT:SCH10-SCH160 Reducer TypeSeamless reducer;Welded reducer;Concentric reducer;Eccentric reducer;butt welding reducer;forged reducer;forging reducer ... steel reducer, stainless steel reducer, alloy steel reducerCarbon steelASTM A234 WPB, WPC,ASTM A105 WPB;ASTM A106 reducer;ASTM ... F 304, 304L,316, 316L,321, 904LAlloy steelASTM A234 WP12, A234 WP11, A234 WP22, A234 WP5,ASTM A335 P5, P9, P11, P12, P22 ...