Soldering at a low point

Lead-Free 138℃ Low Melting Point High-Purity Solder Wire Soldering Flux

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how to avoid this pointy type soldering? it's happening to me a lot. : r/AskElectronics

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Soldering Wire Welding Roll 0.8/1mm Rosin Core Solder Low Melting Point Tin Wire

Dropship Tin Welding Wire Soldering Wire For Electronic Solder With Low Melting Point Wire Diam:1mm to Sell Online at a Lower Price

What is the melting point of lead solder? - Quora