... :AISI,ASTM,DIN,EN,GB,JIS Etc AISI 309 Stainless Steel Black Bar Product Stainless Steel Black Round Bar Material 201,202,304,309S ... Paied Before Delivery Feature Most Widely Used Steel Type Because Of Its Good Corrosion Resistance, Thermal Resistance,Strength At Low Temperatures,And ... Standard AISI,ASTM,DIN,GB,JIS,EN Etc AISI 309 Stainless Steel Black Bar