Gas and liquid gas spring is a flexible medium for the work element, the pressure tube, piston, piston rod and a number of connected pieces of composition, its internal high pressure nitrogen gas charge, as with through hole inside the piston, the piston ends Qiti pressure equal to, but different cross-sectional area on both sides of the piston, a piston rod and the other end of the termination are not, in the gas under pressure, resulting in small cross-sectional area to the side of the pressure and gas spring stretch, stretch the size of the can set different nitrogen pressure or the set of different diameter rod. The difference is that with mechanical springs, gas springs with near-linear elastic curve. Standard gas springs between the elastic coefficient of X between 1.2 and 1.4, other parameters can be flexible according to the definition of requirements and conditions
