welding torch pipe

例句：

1. 1. The weldingtorch is used to heat and melt metaltogether.
   焊接焊枪用于加热和熔化金属。
2. 2. The welding torch pipe isessential for the welding process.
   焊接焊枪管对于焊接过程至关重要。
3. 3. Thewelding torch pipe is a criticalcomponent in the welding process.
   焊接焊枪管是焊接过程中的一个关键组件。