... Gr.7,Gr.9,Gr.12,2. Standards: ASTM B863, AWSA5.16, ASTM B348, ASTM F67, ASTM F136, AMS4951, AMS4954, AMS4956.3. Size ... Gr7,Gr9,Gr12, etc.StandardGB,ASTM, BS,BSW ,ISOAWS A5.16, ASTM B863, ASTM B348, ASTM F67, ASTM F136SpecificationDiameter:0.04-6.0mmSurface ... experience in China, with advanced production equipment and testing instrument and large-scale production capability of 5000 tons per year ...