... 2.1-3-5 core soldering tin wire 3. lead-free,tin-lead bars Tin Wire and Tin Bars / Welding ros / tin ... and solder wires Features:Materials: copper, tin and ironsTin- and lead-freeCan applied in radio, communication, meters and instrumentsResidue is easy ... types: no-clean, rosin and water-soluble liquidTin solder, welding, lead-free solder bar and wires are also availableVery few scraps2 ...