For attached Metal Metal bracket Material :carbon steel Coating:zinc coating can cording customer' ... rolled,strip steel ) stainless steel .etc2.Processig can be provide : stamping,bending ,welding ,threading ,frinding ,milling ,machining ,lathe ,assembing,etc.3 ... ,machine.and so on6.Certificate: GS,ROHS,ISO 9000-2001 Metal stamping parts professional OEM service