... 1.Material:plastic 2.Process:turning surface treatment:no High quality plastic turning machine part :Material:plasticsurface treatment:notype:turningFast Delivery and good ... , plastic, brass, steel, and stainless steel Surface treatmentpolishing,zinc plating,nickel plating,chrome plating,anodizing.Drawing formatIGS,SLD 2012,X_T,STEP,CAD 2012 ...