Small bronze bushings, also known as bronze bushings, are classified into a variety of types, including mechanical copper rollers, copper bearings and so on. Used in various light industry, large and heavy machinery, is an important component of machinery. The product has the traditional tin bronze bearing function, with electrolytic copper as raw material with a variety of trace metal elements, high-temperature sintering, through the air pressure centrifugal casting processing and become. High hardness, excellent wear resistance, not easy to produce the phenomenon of biting, good casting performance and cutting performance, good corrosion resistance in the atmosphere and fresh water.