Every aspect of powder-core aluminum welding strips is designed for high performance and is suitable for repairing aluminum and other nonferrous materials. Compatible with copper, aluminum, iron, and stainless steel. Features good liquidity, low-temperature welding capability, and a smooth, high-quality weld finish. Made from durable aluminum material with an internal flux core that enhances weldability, corrosion resistance, thermal conductivity, electrical conductivity, and overall processing performance. Note: It is normal for the material to be somewhat brittle; minor damage during shipping does not affect usability. Not intended for use by children under 12 years old. Multifunctional use: Suitable for stainless steel applications, pure aluminum TIG welding, filler material, aluminum bus bars, guide bars in electrolytic aluminum plants, and connections in power, chemical, and food industries. Easy to use: No need for additional alloy cores or external flux. The powder-core design allows for quick welding using a simple heat source such as a torch. Widely used in welding household water pipes, gas pipes, stainless steel pipes, copper pipes, aluminum pipes, tanks, electronic components, and electrical wiring. Package includes: 3 or 6 electrodes