Recently years, there is a special division of conveyor belt which depends on the operating position–indoor or outdoor. The conveyor belt indoor has the requirements differ from the outdoor conveyor belt. Outdoor conveyor belt requires waterproof function which can not be replaced by indoor conveyor belt. The outdoor conveyor belts mainly are the rubber conveyor belt. Because of the rubber conveyor belt's heavy weight, conveyor belt lost the occupation of the indoor conveyor belt market.
With the arrival of the 1990s, electronics industry has been in a rapid develop speed. PVC conveyor belt got a great number in the market. PVC conveyor belt is considered the lightconveyor belt, also the indoor conveyor belt. For the hard standard of electronic industry, there comes the anti-static conveyor belt. Since then, anti-static conveyor beltgain the huge market of electronics manufacturers. Other industry also slowly began to use the indoor conveyor belt, such as food industry.