Plastic-lined composite pipe, also known as steel-plastic composite pipe, embedded steel-plastic composite pipe with inner reinforcement, is divided into cold water pipe and hot water pipe. Because of its oxygen barrier effect, it can be directly used in direct drinking water projects, and its inner and outer layers are made of plastic material, which has very good corrosion resistance. Widely used in oil and natural gas transportation, industrial and mining pipes, drinking water pipes, drainage pipes and other fields.

Stainless steel pipe is a kind of hollow long round steel, which is mainly used in industrial transportation pipelines and mechanical structural components such as petroleum, chemical industry, medical treatment, food, light industry, mechanical instrument and so on. In addition, when the bending and torsional strength are the same, the weight is lighter, so it is also widely used in the manufacture of mechanical parts and engineering structures.

Plastic-lined fittings are also called plastic-lined pipe fittings, including elbows, tees, crosses, reducers, etc. It adopts the lining material and corresponding size of the same material as the steel-plastic composite pipe, and is used together with the pipe, which has the same anti-corrosion ability as the pipe, and has interchangeability and versatility. Mainly used in chemical industry, petroleum engineering, electric power engineering, pharmaceutical industry, mining industry, smelting industry, etc.

Water supply and drainage valves are often used in domestic water supply, fire protection systems and industrial water supply systems, and are generally used to control flow, water level, etc. Including water conservancy control valve, check valve, globe valve, valve, filter, etc.