Which is more tiring, the factory proofing staff or the electrician?

Proofing is to make a product according to the customer's requirements for customer review. If there is no problem, the customer can confirm OK and then make a sample. Generally speaking, a qualified sample is needed before mass production.

This job is an electrician, responsible for the maintenance of electrical equipment in a larger factory. Generally, small factories or units, because of fewer failures, mostly recruit maintenance electricians to do some other work, which may be relatively tiring.