A hand-held firearm

I. Definition
A pipeless hand tool for controlling the combustion of gas to form a cylindrical flame for heating and welding work, also known as a hand burner (gas generally uses butane)
Ii. Structure
The handgun is divided into two main structures: gas storage chamber and surge chamber, and the middle and high-end products also have ignition structure.
Gas storage chamber: also known as a box, there is gas, the composition is generally butane, for the tool of the surge chamber structure to transport gas.
Surge chamber: This structure is the main structure of the handgun, by receiving gas from the gas storage chamber, and then through a series of steps such as filtration, pressure regulation and flow conversion, the gas is emitted from the muzzle.
Third, the working principle
The gas is sprayed out of the muzzle and ignited to form a high temperature cylindrical flame for heating and welding.
Iv. Specifications
In terms of structure, the handgun is divided into two types, one is the air box integrated handgun and the other is the air box separate type firearm.
1) Air box integrated handgun: easy to carry, generally smaller than the separate type, light weight.
2) Air box separate handgun head: need to connect to the gas cylinder, the weight and volume is larger, but the gas storage is large, last longer