http://www.oil-gassuperchargedsystem.com/oil-and-gas-compressor/ Products and Services I. Oil and Gas Compressors and Superchargers 1. Gas screw compressor Technical advantages of gas screw compressor 鈥?New generation rotor profile - higher efficiency and lower noise 鈥?As the bearing size is increased, its service life becomes longer. 鈥?Quality assurance - test each machine before delivery. 鈥?Patent design: multi-stage injection inter-stage cooling technology with higher efficiency 鈥?High flexibility for various applications