... all types of lathe. 7.Surface finish process polishing, sand blasting, heat treatment, painting, powder coating, anodizing, electroplating, ... Aluminum motor cover:1. Aluminum casting, casting part, sand casting, die casting, gravity casting, high pressure die ... all types of lathe.4. Surface finish process: polishing, sand blasting, heat treatment, painting, powder coating, anodizing, electroplating, ...