Function proceed description : 1.vacuum pumping 2. Automatic liquid feeding 3. automatic compressing , 4 constant pressure 5 automatic pressure releasing , 6. Automatic liquid return 7. automatic fluid exhaustion 8 automatic double liquid level detection ,9 automatic liquid complement 10.automatic constant temperature , 11 alarm for excess temperature 12 alarm for working completion MAJOR ADVANTAGES OF OUR AUTOMATIC EFFICIENT IMPREGNATION MACHINE 1.quolity improvement