Gas spring can rise and fall of the spring can is a kind of energy saving��Can be divided into can be self-locked gas spring����Such as the bottom of the seat lift��After the boss chair back of a chair, etc��Not since the gas spring lock��Such as car tail box of lifting support, a built-in wardrobe or cupboard door��The structure of the gas spring is mainly composed of sleeve, piston and piston rod, etc��Join the high pressure air inside the sleeve or high pressure nitrogen��The pressure difference generated by the piston area depending on both ends��Push the piston and piston rod movement and support person or heavy objects��