Vacuum Pumps, Compressors, Water Pumps manufacturer / supplier in China, offering Good Quality 2BV2 070 Liquid/Water Ring Vacuum Pump for Pipe Extrusion Line, Competitive 2BV2 7.5kw Stainless Steel of Liquid Ring Vacuum Pump, New Arrival 2BV2 7.5kw Stainless Steel of Liquid Ring Vacuum Pump and so on.