Tender For providing of refilling of industrial gases in cylinders - gas mixture hydrogen h2 20000 ppm / 2% nitrogen-n2-balance 10 ltrs cylinder, pressure: 120 kg/cm2; nos,refilling of industrial gases in cylinders - gas mixture hydrogen h2 800000 ppm / 80% nitrogen-n2-balance 10 ltrs cylinder, pressure: 120 kg/cm2; nos,refilling of industrial gases in cylinders - gas mixture hydrogen h2 600000 ppm / 60% nitrogen-n2-balance 10 ltrs cylinder, pressure: 120 kg/cm2; nos,refilling of industrial gases in cylinders - gas mixture hydrogen h2 400000 ppm / 40% nitrogen-n2-balance 10 ltrs cylinder, pressure: 120 kg/cm2; nos,refilling of industrial gases in cylinders - gas mixture oxygen: 15% oxygen rest may be nitrogen, in 3 ltrs capacity cylinders; nos,refilling of industrial gases in cylinders - gas mixture oxygen: 5% oxygen rest may be nitrogen, in 3 ltrs capacity cylinders; nos,refilling of industrial gases in cylinders - gas mixture oxygen: 10% oxygen rest may be nitrogen, in 3 ltrs capacity cylinders; nos