... environment,application: picnic, travel, camp,for alp and frigid zone.CAMPING gasparticularly for mountain (5,000 ... cylinder containes High-purity gas mixture 230g with propane/iso-butane, can use in -20 around in the ... 0 hours, the combustion flame stability, is blue and white.Use method:1, removed the cover gas above ... can open-top thimble of the wswitch.3, and then joint-side edge of the switch to ...