... 380v/400v 5 Please call us for the detailed parametersFSR200G high pressure roots blower|roots pumpKey Features 1, the product line using ... testing, high-speed operation of the force balance, low vibration. 5, transmission medium is not oil. No oil lubrication the internal chassis ... contract requirements) flexible joint, lubricating oil, exhaust muffler. FSR200G high pressure roots blower|roots pump