... carbon steel 3.certificate:API,CE,ISO About Products:SEAMLESS pipe : ISO 9001CERTIFICATE. BUTT WELDED FITTING: Production acc. to the standard of ... and eccentric Reducers,seamless and welded -Caps, Wall thickness: From Sch5 up to Sch160/STD/XS/XXSMaterial Grades: A403,WP304, ... WP304L, Wp316, WP316L, A234WPB,Dimensions: Seamless: from 1/2' up to ...