... or black Standard Category: GB, AISI, DIN, JIS, SUS, ASTM stainless steel Round bar1)Size: 5mm - 350mm 2)Surface: Bright/Polish or ... (1Cr13) ,420(2Cr13) ,430(1Cr17)6)Quality: We provide the Test Certificate of material7)Finished: Hot rolled, cold drawn, pickled, polished, black. 8 ... market.welcome to visit our factory 201/202/304/316 hot rolled Stainless steel round bar