As the internal chamber is pressured in vacuum condition, bubbles and short-shot loss are prevented and suitable for high precision products. Minimized the over hole and can be reduced the loss of materials. Be capable of reducing setting times of operating conditions of same items by storaging operating conditions (20set) by touch screen monitor and prompt remedy to the breakdowns and operation is possible by preserving messages(195items) for the operations and defects. Efficient production management is possible by computer communication because of the receiving data at the computer room with real time (option).