... , Drilling, threading, stampling, punching etc.Surface FinishPolishing, and aluminum plating, zinc plating, Sandblast, Electrophoresis, Anodization,Hard Anodizing,Electropolished ... up → (Inspection) → surface treatment → (Inspection) → Aging → (Inspection) → Machining → (Inspection) → (Air tightness testing →impregnation) → final inspection → packaging → warehousingPayment method: We accept payment ...