Spring is a kind of mechanical part that uses elasticity to work. It is usually made of spring steel. Although the spring is small, as a general basic part, it has a large quantity and a wide range of varieties. It is used to control the movement of machine parts, mitigate the impact or vibration, store energy and measure the size of force. It is widely used in machines and instruments, and its application fields involve almost all fields of national economy.
In recent years, the rapid development of China’s national economy has also promoted the rapid growth of China’s spring industry. Experts predict that this growth trend will continue, and the sales volume of the whole industry will exceed 4 billion yuan in 2010. According to the analysis, there are five major markets for spring products: transportation, daily hardware, instruments and electronic appliances, industrial and mining accessories, and overseas export markets.