... Precision Parts Series(CNC Machining Parts: auto part,auto spare part,motorcycle part. ) Company Profile:Donllin Technology is a ... turning parts, Grinding parts, Metal stamping parts, Die casting and forging parts, Welding parts ,Broaching, Drilling, ... customer specified material. 3.Finishing Treatment:Anodizing, Electroplating, Sand Blasting ,Polishing, Powder Coating, Blacken, Hardening, Painting ...