... :ASTM,JIS,DIN,GB,SUS 3.Grade:TP304/L TP/316LTP321 904L TP310/S,S31803,S32750,600, ... ,9940-81JIS 34594.material:Austenitic S.S. TP304/L TP316/L TP321/H,TP310/S, S34700 S31703.Duplex S ... Surface: mill finish; mirror surface finish6.Application field:chemical industry,water treatment,paper making, oil and nature gas refinery ... food dariy 316# stainless seamless steel tube&Construction,Industry,Buildings