... : 1213, 12L14,1215,etc. 6.Aluminum: Al6061, Al6063, etc. 7,.Carbon steel:AISI1006,AISI1010,AISI1022,etc. 8, Alloy steel: SCM435,10B21 ... ,DIN,JIS,ANSI,BSW Manufacture ProcessHeading/washer assembly/Threading/Secondary machine/heat treatment/plating/Anti-slipping/Baking/QA/Package/Shipping Warrantywe ...