... high efficiency. 2.Multistage compression. 3.Easy maintena Xinyi Gas Compressor Structures & Features1.Reasonable design and high efficiency. ... NH3, CO2, Ar, H2, O2, CH4 and other gas mixtures. Xinyi High-pressure Oil-free Compressor Features:1. ... Textile, printing and dyeing, leather processing lines.4.Semiconductor, electric equipments, electrons processing lines.5.Power station, ironworks factories ...