Hebei Zhousong Gas Fire Extinguishing High Pressure Fittings are widely used in gas fire protection systems for telecommunications, power stations, computer rooms, communication rooms, generator rooms, power distribution rooms, archives, libraries, museums, ships, high-rise buildings, and other gas fire protection projects for high-pressure pipeline connections. These high-pressure fittings are primarily used as connecting pipes in pipeline installations, particularly at bends. They connect two pipes of the same nominal diameter, allowing the pipeline to make a 90° turn. Gas fire extinguishing high-pressure fittings are a general term for various types of elbows, with materials ranging from carbon steel, manganese steel, to nickel steel, among others. Their applications are very versatile. Standard bronze alloy elbows are commonly used in general water supply pipelines, but with the improvement of living standards, many water supply pipelines have been replaced with stainless steel elbows. Manganese steel alloy elbows are often used in concrete conveying pipelines and slurry conveying pipelines due to the excellent properties of manganese steel, such as its ability to withstand impacts, compression, and material wear.