... , 2008, 14001, 2004, 2007 and OHSAS18001 Gas type: Natural gas, biogas, CBM etc.Gas Generator Set Features:1. There should not contain ... sulfide content goes too high.4. Electronic air/gas mixer, which can supply best air fuel ratio to improve working efficiency and ... the stability.6. Long overhual period: 18000-25000 hours7. Automatic smart control system, easy to handle. Duing the working time, ...