... part,motorcycle part. ) Company Profile:Donllin Technology is a professional machining company which specialized in high precision CNC parts design and produce for ... , CNC lathe turning parts, Grinding parts, Metal stamping parts, Die casting and forging parts, Welding parts ,Broaching, Drilling ... , Alloy steel ,Brass , Bronze , Copper, Aluminum,Carbon steel or customer specified material. 3.Finishing ...