... .Material:Metal(SS,Aluminum) 2.Precision CNC Turning,Drilling,Boring,Milling 3.OEM CNC Machining A,certification: ISO9001:2008B,Products Availablebolts, screws, nuts ... , C52100, C54400, etc.5. Iron: 1213, 12L14,1215 etc.6. Aluminum: Al6061, Al6063,AL7075,AL5052 etc.E,Processing Methodcnc machining, turning, milling ...