... ISO14001:2004, CE. Vacuum Pumpimpeller of the Vacuum Pump is made of excellent alloy copper,air inlet equipped ... ,Medicine Package, Disinfectant, Printing, Dyeing, Weaving, Plastic Industry, Vacuum Pump's Merits:simple structure, small volume, high-speed extract ... COPPER IMPELLOR, COAT DISPOSAL INSIDE PUMP BODY AND PORT PLATE.GOOD QUALITY fluorine rubber MECHANICAL SEALSTRICT TESTING PROCEDURE BEFORE ...