To help you make an informed decision about TIG torch consumables, this article focuses on how to choose backcaps, collets and collet bodies, gas lenses and nozzles.

• 帮助您作出明智的决定TIG焊火炬消耗品；这篇文章着重如何选择backcaps；夹头及夹头团体、气镜片气枪.