I graduated from the Institute of Industrial Modeling and have worked for more than ten years. How to declare intermediate title (limited major)?

Sure!

Anyone who abides by the law and meets one of the following conditions can sign up for all the subjects of the second-level construction engineer: (1) having a technical secondary school degree or above in engineering or engineering economics, and having been engaged in construction and management of construction projects for two years; (two) to obtain other professional secondary school education and engaged in the construction and management of construction projects for 5 years;

(three) engaged in the construction and management of construction projects for 15 years.

Go and find a unit to open a certificate and write down the working years. Do it!

I can help you in Yichang.