... :wooden,carton 5. Certificate:ISO 9001 Vacuum PumpSummary of use: It applies in refrigeration, electronic bulb industry, printing, pharmacy, food packing, medical ... series of product could not be used as compression pump or transport pump.3.The advantages of small volume, light weight, low ... :1,Double meter and double tap are adopted, it can be used in single way or the way lf parallel connection.2 ...