Zhejiang Kaiou Transmission Belt Co., Ltd. comes from the Sanmen rubber Synchronous Belt Factory. It is a joint-stock company established in 1990. The total investment is RMB28 million and the registered capital is RMB 5 million. Now it has 458 employees among which 38 are senior staffs, engineers and technicians. With the continuous extension of the transmissions belt application and markets expanding both home and abroad, the company is growing year by year. Covering an area of 88828 square meters, among which 9680 square meters are building, the company reaches annual production of RMB 20 million. It keeps a leading position and is well known in the industry. In the newly established plant of 6667 square meters, the new production line of V-belts is being installated. With that line, the production can be 36 million pcs more annually.