I have already tried using a wired CONTACT BOARD TSSOP173 lead high temp in the solder, because the lead is used as a flux coating must therefore be used to solder flux helps to keep the lead, then flows into the hole to fill board and do not crack from the heat at a temperature of 250 degrees, wind blowing to see whether or not it will lead each pattern, which appears to have no solubility of lead.
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