How many people are there in Changchun Dirui Industrial Co., Ltd., and what is the treatment of maintenance engineers in their company now? Is it listed?

About 65,438+0,000 people, the salary of Changchun Dirui is in the middle level in Changchun, and the salary of R&D is relatively high. I don't know how to do 3000 maintenance, but it will never be lower than 2000. One disadvantage is that the company does not have overtime pay, but it has five insurances and one gold. The company belongs to the joint-stock system, and it seems to be ready to go public.