Metal Bellows Manufacturers We are Manufacturer of Metal Bellow Expansion Joints | Metal Bellows Manufacturers With several recent developments in technology, there has been a significant rise in manufacturing industries. Almost all the industries in the world deal with pipelines carrying fluids (liquids and gases) or even solids and abrasive media of high temperature and high pressure. As a result, stress on the pipes or ducts is inevitable. The stresses and thermal expansion can lead to dimensional changes, vibrations, and even leakage that can prove fatal to the industry.