auto part,auto spare part,motorcycle part. Stainless steel,carbon steel, Aluminium. Precision Parts Series(CNC Machining Parts: auto part,auto spare part,motorcycle part. ) Company Profile:Donllin Technology is a ... Machining Material:Stainless steel, Alloy steel ,Brass , Bronze , Copper, Aluminum,Carbon steel or customer specified material. 3.Finishing Treatment:Anodizing, Electroplating ...