The oil industry is the pillar industry of the national economy, petroleum and petrochemical products as basic energy and basic materials, has been widely applied in various fields.

The chemical industry permeates all aspects and is an indispensable and important component of the national economy. Its development follows a sustainable development path, which has significant practical significance for the economic and social development of mankind.

The metallurgical industry refers to the sector that utilizes the physical and chemical properties of metals through smelting, refining, processing and other techniques to transform metal ores or metal wastes into metal products with specific properties and application values.

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

The shipbuilding industry is a comprehensive industry that provides technical equipment for the shipping industry, Marine development and national defense construction. It has a strong driving effect on the development of key industries such as steel, petrochemicals, light industry and textiles and the expansion of exports.

The production department of chemical drugs consists of two parts: the production of active pharmaceutical ingredients and the production of drug preparations. Active pharmaceutical ingredients (apis) are the material basis for drug production. They must be processed into drug preparations suitable for consumption before they become drugs.

The papermaking industry is an important sector closely related to the development of the national economy and the construction of social civilization. The product range of the industry includes: pulp, machine-made paper and paperboard, processed paper, handmade paper, etc.

The natural gas industry mainly focuses on natural gas as a clean energy source, covering all aspects including its exploration, extraction, processing, transportation, storage, sales and final use.

New energy refers to various forms of energy other than traditional energy. It refers to energy sources that have just begun to be developed and utilized or are under active research and yet to be promoted, such as solar energy, geothermal energy, wind energy, ocean energy, etc.