The burner is a patented product. Patent law and contract law only allow assembly, production and sales in Guiyang, Zhengzhou, Tai'an and Laiwu. Investment agent. Any unit or individual across the country who assembles, produces and sells a purifier without the permission of the patentee Zhang Shulin is considered an infringement and will be held accountable in accordance with the law. The burner is suitable for use with steel cylinders of various specifications across the country. The burner has been inspected by the Gaizhou Pressure Vessel Quality Supervision Bureau and is safe and reliable. The burner is easy to install. It is connected to the angle valve of the cylinder. The burner can be used by inserting it into the inner hole of the angle valve. It does not change the structure or usage of the cylinder or stove. As long as the connection does not leak, it is as safe as a lighter.