1.high working speed and running well, 2.high quality and competitive price. 3.low pollution, 4,good after-sale service. Product Description 

Performance parameter 1/ Model: ZBK33 2/ Capacity: 2.4m3/min 3/ Speed: 500 r/min 4/ Inlet and outlet dia (mm): 85/78 4/ Weight: 200kg 5/ Overall dimension(mm): 838*681*632.

Zhengzhou City GuangMao High Quality Roots Vacuum Pump