| 摘要 |
A welding gun includes a handle, an input line, a neck and an acoustic wave trigger. The handle is configured to be grasped by an operator and includes first and second ends. The input line connects to a first end of the handle and is configured to deliver wire and/or gas to the welding gun. The neck is operatively connected to the second end of the handle. The wire and/or gas passes into the neck and out through a nozzle. The acoustic wave trigger is secured to the handle and activates the welding gun when merely touched, as opposed to being squeezed or pressed, by the operator.
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