Oil free scroll vacuum pumps manufacturer / supplier in China, offering 4.2m³/h (60Hz); 3.7m³/h (50Hz) low pressure refrigerant recovery unit scroll vacuum compressor, 1.2 l/s (60Hz); 1.0 l/s (50Hz) SF6 recovery and recirculating scroll vacuum air compressor, 18.7gpm (60Hz); 16.4gpm (50Hz) clean vacuum scroll vacuum air compressor and so on.