... Finishing process : cutting,lathing,milling,drilling,tapping,punching,CNC machining,Anodizing(natural color,silver,black,gold etc.),powder coating, ... covering extruding,milling, machining and surface treatment are in the same factory to ensure to the good quality and lead ... , please specify product size, specifications, wall thickness. (2)the requirement of surface treatment and color. (3)quatity. (4 ...