Pump, Compressor, Vacuum Pump manufacturer / supplier in China, offering Water Ring Vacuum Pump and Compressor 2bec Type 400/420/500/600/620/670/720/800/1000, Zj Series Roots Vacuum Pump Zj15/30/70/150/300/600/1200/2500/5000/10000, Wl Wlw Series Vertical Oil-Free Reciprocating Vacuum Pump Wl-50/2wk-25/Wl-100/2wl-50/Wl-200/2wl-100/Wl-300/Wl-600 and so on.