... :AISI,ASTM,DIN,EN,GB,JIS Etc AISI 309 Stainless Steel Black Bar Product Stainless Steel Black Round Bar Material 201,202,304,309S,310S,316 ... 70% Should Be Paied Before Delivery Feature Most Widely Used Steel Type Because Of Its Good Corrosion Resistance, Thermal Resistance,Strength ... Standard AISI,ASTM,DIN,GB,JIS,EN Etc AISI 309 Stainless Steel Black Bar