With the development of the petrochemical industry, engineering construction has shown a trend of large scale and complexity, and the pipe fittings used in pipeline projects also change with different working conditions. The materials used for pipe fittings can be pipes, forgings, castings and other materials, which can be processed by welding, stamping, casting or forging. Among them, we have the more common and commonly used pipe fittings, including flanges, tees, reducers, etc. How much do you know about reducers? Do you know its types and uses? Today, the editor will talk about what a reducer is based on these contents.