焊炬

zài hàn jù shang cóng qián bù dào hòu bù jūn shè yǒu lěng què shuǐ tào

在焊炬上从前部到后部均设有冷却水套。

The cooling water jackets are arranged on the welding torch from the front part to the back part.

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旋转焊炬

rotating welding torch