... 2003, 10 years experience for making shot blasting machine. A group company,having real estate, machinery ... the air,so the sand is tighten.the course is a physics molding way. We have ... can produce Vacuum airproof mloding and sand molding machine by the basis of uesr request.the ... , calefaction, molding and server, vibrating table,sandmolding machine and so on.Vacum airproof molding have the excellence ...