... .Surface: cold draw,pickled ,polished etc stainless steel square bar 1.Grade:ss201,202,301,302,303,304 ,304l,316,316l,317,309,310s ... :GB,ASTM,JIS,AISI,DIN,EN,SUS etc.5.Stianless steel square bar is widely applied for petroleum,chemical,mechanical and electrical ... , JIS , ER , GB , ASTM , etc. grade 201,201,301,302,303,304,304l,308,309,310,310S,316,316L,321,410 ...