In plastic injection molding, Jinhong spure bushing is a metal part that links the mold with the injection machine. The sprue can also be described as a part of the runner, which allows the molten plastic material to be injected into the mold through the nozzle of an injection machine. The steel spure bushing produced of Jinhong passed JH Standard. If you are interested in the products, you can view our website to know more information.