The metallurgical industry refers to the industrial sector that mines, selects, and sinter metal ores, and then refines and processes them into metallic materials. Including two major categories: black metallurgy industry and non-ferrous metallurgy industry, it is an important field of raw material industry.

The construction industry refers to the material production sector engaged in the survey, design, construction, and maintenance of existing buildings in the national economy. The main function of the construction industry is to carry out construction and installation activities for various building materials, components, machinery and equipment, and to build productive and non productive fixed assets for the national economy.

The mechanical industry designs, processes, and assembles raw materials such as metals and non metals into various types of mechanical equipment and components, providing production tools and technical equipment for almost all industries such as agriculture, industry, transportation, energy, and construction. It is the "engine" that promotes the development of social productivity and technological progress.

The shipbuilding industry refers to the industry of designing, constructing, and maintaining various types of ships and related equipment, covering shipyards, marine equipment manufacturing enterprises, and related service industries, including ship design, shipbuilding, ship repair, ship supporting equipment manufacturing, ship trade, shipping management, and other sub sectors.

The chemical industry is a general term for enterprises and units engaged in the production and development of the chemical industry. The chemical industry permeates various aspects and is an indispensable and important component of the national economy. Its development is of great practical significance for human economic and social development by following the path of sustainable development.

The petroleum industry is an important component of the fuel industry, covering multiple links such as exploration, extraction, refining, storage and transportation of natural petroleum and oil shale, providing various fuel oils for various sectors of the national economy.

A power station is a factory that converts various primary energy sources stored in nature into electrical energy. The development of motor manufacturing technology, the expansion of the application scope of electrical energy, and the increasing demand for electricity in production have led to the emergence of power plants.

New energy refers to renewable energy that can be systematically developed and utilized based on new technologies, including solar energy, wind energy, hydro energy, biomass energy, geothermal energy, ocean energy, nuclear energy, etc.