... .Surface: cold draw,pickled ,polished etc stainless steel square bar 1.Grade:ss201,202,301,302 ... JIS,AISI,DIN,EN,SUS etc.5.Stianless steel square bar is widely applied for petroleum,chemical ... electrical,hardware and so on.standard AISI , JIS , ER , GB , ASTM , etc. grade 201,201,301 ... according to international standards of ASTM , AISI , JIS , ER , GB ,etc. contactWelcome your inquiries and hope we can ...