This design itself is a conceptual design. originally, the company's engineers found some deficiencies or improvements in the welding pen in the product structure proofing test, so they made the conceptual design of the welding pen

I think it can be designed as a pen sleeve type, with a closing, and a hole-like suction in the transparent area, which may be better.

The concept is quite good, but I always feel that it can't stand scrutiny, giving people the feeling of semi-finished products.

In order to make a simple and "simple" design, the user experience is lost.

The feeling is a little short of man-machine

Well, you can also make a mole pen.

Small and advanced!

Exquisite

Exquisite and exquisite!