... Material:Metal(SS,Aluminum) 2.Precision CNC Turning,Drilling,Boring,Milling 3.OEM CNC Machining A,certification: ISO9001:2008B,Products Availablebolts ... uses.D,Materials Available1. Stainless Steel: SS201, SS303, SS304, SS316 etc.2. Steel:Q235,20#,45# etc.3 ... . Aluminum: Al6061, Al6063,AL7075,AL5052 etc.E,Processing Methodcnc machining, turning, milling, drilling, grinding, broaching, welding,stamping, ...