Thad incident makes us more and more rational

From the Diaoyu Island incident to the current "Sade" storm, the official protest was issued for the first time. As citizens, many people have consciously participated in patriotic actions.

Simple behavior-achievement you and me

In fact, sharing this article is also based on the details found in daily life, so as to provide helpful friends for reference.

What are the holding solenoids?

Holding electromagnets can be divided into single holding electromagnets, double holding electromagnets and holding chuck electromagnets according to different requirements.