carbon steel reducer 1.DN10-DN2000 2.SCH15-SCH160 3.Q235,A234,S304,S316,ETC Typecarbon steel reducerSize1/2''-48''(DN15-DN1200)Wall thicknessSch5-Sch160 XXSStandardANSI ASME GB SH HG MSS JIS DIN APIMaterial1) Carbon steel:ASTM A234WPB,WPC;ASTM A420 WPL9,WPL3,WPL6A;ST37.22) Stainless steel:ASTM A403 WP304/304L,WP316/316L,WP321,WP3473) Alloy steel:ASTM A324 WP1,WP12,WP11,WP22,WP5,WP9,WP914) Duplex ...