... Best service. 5. german auto parts Part Name:CNC machining connector partA:certification: ISO9001:2008B.Products Available bolts, screws, ... convenient transportationD.Materials Available1. Stainless Steel: SS201, SS303, SS304, SS316 etc.2. Steel:Q235,20#,45# etc.3. ... : Al6061, Al6063,AL7075,AL5052 etc.E.Processing Method cnc machining, turning, milling, drilling, grinding, broaching, welding,stamping, ...