63/37 Rosin Core Tin Lead Solder Wire For Electrical Soldering(0.3mm/50g)

Tin Lead Rosin Flux Core Solder Wire. Soldering Wire Reel Size:50mm dia x 18mm(1.97in dia x 0.7in). solder wire dia0.3mm/0.0118in. The best use ratio is 63/37.

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