发布时间:2025-01-31 23:30:34
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!
手压式旋转拖把干坏了把拖把杆拉到最高处自己就掉下来我想拆开看到没螺丝怎么拆开修啊
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