In the practical production of equipment such as air conditioner, torch soldering is usually used to weld copper tube.

在空调等设备的生产中，经常采用火焰钎焊工艺来焊接紫铜管。

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In the practical production of equipment such as air conditioner, torch soldering is usually used to weld copper tube.

在空调等设备的生产中，经常采用火焰钎焊工艺来焊接紫铜管。

youdao