... V-process molding is a new type special casting technics, and adopts single dry sand (no water, binder, tagger), then it is ... airproof molding technic, we can produce Vacuum airproof molding and sand molding machine by the basis of user request. The company ... table, sand molding machine sand plant and so on. Vacuum airproof molding have the excellence of high automatic, high quality of casting, high ...