... German imports OPTI belt rootsblower. 2.SKF bearing roots blower. 3.Low noise roots blower. 4.Passed ISO9000 certification Product types:( ... .20m3/min Pressure: 9.8kpa-73.5kpa(3)High-Pressure Roots Blower: MFSR50H, MFSR65H, MFSR80H, MFSR100H, MFSR125H, MFSR150H, MFSR175H, MFSR200H ... /min-134.1m3/min Pressure: 29.4kpa-98.8kpa (4)Roots Vacuum Pump: MFSR50V, MFSR65V, MFSR80V, MFSR100V, MFSR125V, MFSR150V, ...