发布时间:2025-01-19 16:21:59
胀好杯形口,母材插入深度,充氮,调整中性焰,加热,接近暗红色时,上磷铜焊条,将焊料熔化后流进缝隙,充满后,离火,降温后,停氮,OK,要多练习。祝你好运!
电视有个35插口分出红白黄三相插头音响51一中置二环绕二立柱
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