About Product:The Flame of the Product Can Reach 1300 Degrees. It Can Melt Gold, Silver, Copper, Aluminum, Tin and Other Metals, and Cannot Dissolve Steel and Iron.The Cartridge Cylinder Is Generally Used Continuously for about 1.5-2 Hours.before Igniting the Fire, Let the Gas Flow for Two Seconds, and the Valve Callback Is the Smallest, So It Is Easy to Catch Fire.Keep a Certain Distance between Flame Gun and Articles, Because It Is Too Close, Tempering Will Occur and the Local Temperature of the Nozzle Is Too High. Please Pay Attention to Cooling If This Product Cannot Be Used for a Long Time, Otherwise It Will Affect the Life of the Spray Gun.