✔ You will receive a box of solder paste with a net weight of 50g and a neutral pH value of 7 ± 0.3; High quality iron box packaging, not easily damaged, easy to carry. ✔ Less residue, good tinning properties, easy to weld, less smoke, and no irritating odor. ✔ Butter ointment, containing rosin resin, non-toxic, lead-free, safe and reliable, with good insulation properties; The soldering iron tip for gold copper alloy substrates has antioxidant properties and is not easy to tip over in a semi-solid state. ✔ Before welding, wipe the surface of the item clean, apply this paste to the copper, iron, tin and other metals at the welding point, and then use a soldering iron to melt the tin at the welding point. ✔ Widely applicable, very suitable for mobile phone repair, computer motherboard, SMT surface mount, wire bonding, LED surface mount, audio circuit board, BGA soldering, home appliance repair, etc., Manufacturer: LABUYI