There are two main types of insulation profile of the bridge: injection molding and wearable. Injection-type hot-cold bridge used by aluminum plants in Asia. The basic principle is that the aluminum alloy profile is divided into two inside and outside the whole, the use of a special formula between the polymer insulation polymer "hot glue" to connect, so that the aluminum fan and frame material to achieve effective thermal the goal of. Processing equipment pouring cutting machine, grinding machine, casting machine, cutting machine four. Plastic injection from the two components from a mixture of patented technology. Wear insulation bar for the majority of aluminum bridge manufacturers commonly used. Its working principle is the internal and external profiles with special and special insulation to connect the aluminum profile with a thermal function.