... -purity gas 230g , It is convenient to carry, easy to use. with a portable fire burning for 2.5 ~ 3.0 ... part of the screw interface, so that the joint can open-top thimble of the switch. 3, and then joint ... -side edge of the switch to open a little twist, to ensure that no leakage, so ... than pressing the flats at the same time the lower end of the automatic ignition switch can be used. 4, ...