A tubular heat exchanger is an important device using in many industry to transfer heat between two fluids. It look like long tube with another tube inside. Hot fluid go through the inner one, while cooler fluid move around outside. This simple design make heat exchange good, help save energy and keep system run smooth. At Shanghai Changlong, we focus to make high-quality tubular heat exchanger, so industries can work better with less energy use. These device play big role in power plants or chemical factories, make sure machines and processes stay at right temperature.