... oil or air5. size: any size or profilewelding part:Depending on our welding process,Shantin can provide the ... workshop is equipped with CNC Laser Cutting Machine, CO2 Welding Machine, Sandblasting and Painting facilities to cover complete ... steel, alloy steel etc.2.Manufacturing Processes: sand casting, investment casting, centrifugal casting etc.3.Technology: surface treatment, polishing, machining, ...