Oil free scroll vacuum pumps manufacturer / supplier in China, offering GWSP75 19gpm (60Hz); 16gpm (50Hz) laboratory dry clean gas oil free oil less scroll vacuum pump, GWSP300 18.3 m3/h oil free scroll vacuum pump used in IC packaging machine, 31.3 m3/h (522L/min) GWSP600 dry scroll pump combined with lower ultimate pressure, lower power consumption and lower noise and so on.