Welding current is transferred to the wire through the contact tip whose bore is slightly greater than the wire diameter.

焊接电流通过孔径稍大于焊丝直径的接触端传送到焊丝。

youdao

Welding current is transferred to the wire through the contact tip whose bore is slightly greater than the wire diameter.

焊接电流通过孔径稍大于焊丝直径的接触端传送到焊丝。

youdao