ITEM NAME:Dental Butane Gas Torch Burner Welding Soldering Gun Lighter Welder! R0D8 F W2B3 Description&Preview.Refillable Butane Gas. Butane power. Soldering Welding Torch Tool. Light Weight Design. Internal air pressure: 0.35 +/- 0.05MPa. All pictures are for illustration purpose only and Colours may vary slightly.