gas spring is a supporting, buffer, braking and a high degree of regulation Degree angle and adjust the functions of the parts. The basic principle is confined in the cylinder in the body into filling and the outside Atmospheric pressure to a certain sector of the inert gas or a mixture of oil and gas, and the role in the use of live Sierra Leone under the pressure of cross-sectional surface of the poor to complete freedom of movement spring air. Air springs and mechanical springs. The biggest difference: general mechanical spring, the spring stretch of the spring as a non-campaign Regular changes in the earth, and air throughout the spring campaign trip in force basically unchanged.