An M S Seamless Reducer is a type of pipe fitting that connects two sections of piping with different diameters. They are important components in piping systems, allowing for a smooth transition from one pipe size to another without abrupt changes in flow characteristics. These are made of mild steel, which provides good strength and durability for a wide range of applications. They are used in power generation facilities to connect pipes in boiler systems and cooling systems. M S Seamless Reducer comes in various sizes to accommodate different pipe diameters and meet the specific requirements of the system.