1. The flame of the product can reach 1300 degrees, for gold, silver, copper, aluminum, tin and other metals can be melted, but can not dissolve steel and iron. 2. Card-type gas cylinder general fire can last for about 1.5-2 hours. 3. Before igniting the fire, let the gas flow for two seconds, the gas valve is adjusted back to the minimum, it is easy to hit the fire. 4. and items to maintain a certain distance between, because too close, will produce a tempering nozzle local temperature is too high, this product can not be used for a long time, please pay attention to cooling, or affect the life of the . Type:Welding Torch The factory batches are different and there may be color differences, which does not affect the use of the product. Color: gold material: metal Package Contents: 1 x Gas Burner Tool Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.