The flame torch is convenient to use and suitable for metal welding, pipe thawing, outdoor barbecue, cake baking, air conditioner and refrigerator copper pipe processing, singeing, and household maintenance. Welding Instructions: Use with universal copper-aluminum flux-cored welding wire (not tin welding wire) for welding and repairing copper, aluminum, iron, stainless steel, and other common household metal items. Not suitable for welding cast iron, cast copper, or other hard and thick castings. Step 1: Clean the welding joint thoroughly before starting; ensure it is free from dirt and oil. Step 2: Heat the base metal (welding parts) to 350–400°C, then place the welding wire at the joint for proper bonding. Avoid overheating the base metal to the point of redness or burning. Note: If the welding wire does not adhere after melting, the base metal has not been heated sufficiently. The maximum flame temperature of this torch reaches up to 1300°C. Tips: Product design and appearance may be updated periodically. Actual product may vary slightly in color or appearance. Please consider this before placing your order if specific color or appearance is important to you. Color: Blue Material: Rubber + Copper Package Contents: 1 x Propane Torch Note: Other items not included. Light reflection and display differences may cause slight variations in color between the image and actual product. Measurement error allowed is +/- 1-3 cm.