Grade:8.8/10.9/12.9 Surface Protection: Black oxide, Phosphate, Zinc plated 1/M2 M3,M5,M5 ... trearment: Plain, zinc plated etc.2.Variety of standards:ISO,GB,DIN,JIS,ANSI3.We have passed ISO9001-2000,SGS ... , Al6063 SpecificationM2-M36ColorPlain, blue plated, white plated, yellow plated,black.StandardISO,GB,DIN,JIS,ANSICetificateISO9001-2000,SGS,ROHSFunctionAatomobile,electronic,mechineryPackageSuitable ...