Which is better, Changzhi Tsinghua Machinery Factory or Changgang?

In Tsinghua, state-owned and skilled workers earn more than 4,000 yuan, and there are tens of thousands of senior technicians and ordinary employees.

It is an aerospace enterprise with quite good benefits. The most famous product is the launch base platform of Shenzhou series manned spacecraft.

Nagaoka doesn't know how. Now it seems to be a subordinate unit of Shougang.