Solder alloys are selected for their properties to flow, sealing ability, electrical conductivity, and for general body work to provide a smooth surface for finishing.
选择软焊合金时应考虑其流动性、密封能力和导电性，此外？以提供光滑的加工表面。
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Use just enougn solder: with wire solder, use 3/4" for a 3/4" valve, etc. If too much solder is used, it may flow past tube stop and clog sealing area.