Generally speaking, do ceiling bolts need to be pulled out?

New quality acceptance standard: embedded parts, steel suspenders and steel suspenders of 5.3.3.3 suspended ceiling project should be firmly buried and treated with rust prevention, and suspenders, keels and decorative plates should be treated with anti-corrosion and fire prevention. When using expansion bolts, a pull-out test should be carried out, and the safety factor of its bearing capacity should be not less than 2. 2.