20pcs Solder Wire Lead-free Sn99.3 Cu0.7 Welding Wire Rosin Core Tin Wire 1.2mm 50g

Features: Safe Solder wire lead-free tin wire 1.2mm 50g, high purity rosin core High insulation resistance, little residual. Good welding performance to reduce welding time, improve welding efficiency Low corrosion, low melting point, fast welding speed, reduce the thermal shock caused by welding to components After welding, a protective film is formed on the surface of the solder joint to slow down the oxidation of the solder joint, and keep the solder joint bright The solder wire is widely used in electrical soldering, circuit maintenance, cell phone circuits, computer motherboards etc. Specs: Weight: 50g Diameter: 1.2mm Tin: 99.3%; Copper: 7% Flux: 2.0% Working Temperature: 250℃-300℃ Package Contents:20*50g Solder Wire Lead-Free How to Use:1. In order to obtain a good welding effect, the parts to be welded must have weldability and keep the metal surface clean, use a suitable soldering iron or soldering stand2. After the solder iron is electrified, when the temperature of th