The water treatment industry involves purifying, softening, disinfecting, and removing iron and manganese from water that does not meet the standards. It also involves removing heavy metal ions and filtering, which is an important field to meet the diverse water usage demands.

New energy refers to renewable energy that can be systematically exploited based on new technologies, including solar energy, wind energy, hydropower, biomass energy, geothermal energy, ocean energy, nuclear energy, etc.

The construction industry is a pillar industry of the national economy, covering urban and rural construction, infrastructure and industrial support. It forms a complete industrial chain including planning and design, construction, decoration, and material supply. Its role in stimulating employment and promoting urbanization is crucial, and it is also an important application market for fluid accessories such as valves, forgings, and metal seals.

Natural gas is a clean and efficient fossil energy source, with methane as its main component. The natural gas industry encompasses the entire chain from exploration, development, production, purification, storage, transportation, sales to utilization.

The chemical industry refers to all enterprises and institutions engaged in chemical production and development. It mainly consists of three categories: petrochemicals, basic chemicals and fibers.

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 electrical energy, and the increasing demand for electricity in production have all led to the emergence of power plants.

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

The metallurgical industry refers to the industrial sector that involves the extraction, selection, smelting of metallic ores, and the subsequent processing and manufacturing of metal materials. It consists of two major categories: the black metallurgical industry and the non-ferrous metallurgical industry, and it is an important field within the raw material industry.