Synergy Development Enterprise are involve in fuel saver designed for years and enjoy good reputation. We designed and also custom made based on OEM / ODM requirement. Our products includes : PEM fuelcell system, Fuel saver, Hydrogen generator, Oxygen generator.For more detail pls view : http://xxxxx/member/hbtech/product.htmlfor further detail pls feel free to contact us. Thank you for giving us this opportunity to serve you.Best regardsSincerely yoursLim HB