CONCENTRIC REDUCER, ECCENTRIC REDUCER, SEAMLESS elbow:BUTT WLDING PIPE FITTINGS:Production acc. to the standard of GB /ASTM / ASME / DIN / JISTypes: REDUCER, CONCENTRIC REDUCER, ECCENTRIC REDUCERWall thickness: From Sch5 up to Sch160/STD/XS/XXSMaterial Grades: A403,WP304, WP304L, WP316, WP316L,A234 WPB,Dimensions: Seamless: from 1/2' up to 24'Welded: From 1/2' up to 72' CARBON STEEL CAP