发布时间:2025-01-19 16:11:05
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!
自己砌的水泥三格式化粪池除了连通管是不是盖好盖不能漏气掏粪口堵上后
2025-01-19 16:11:05 2025-01-19 16:11:05 2025-01-19 16:11:05 2025-01-19 16:11:05 2025-01-19 16:11:05 2025-01-19 16:11:05 2025-01-19 16:11:05 2025-01-19 16:11:05 2025-01-19 16:11:05 2025-01-19 16:11:05 2025-01-19 16:11:05 2025-01-19 16:11:05 2025-01-19 16:11:05 2025-01-19 16:11:05 2025-01-19 16:11:05 2025-01-19 16:11:05 2025-01-19 16:11:05