The difference between stepless lifting and air pressure lifting

Pneumatic lifting chair [1] is a new type of chair. There is a cylinder in the lifting chair, and the piston rod in the cylinder moves up and down to control the lifting of the swivel chair. Endless lifting, with spring and locking device. Fishing chair is one of the essential fishing tools for fishing enthusiasts. The chair has a spring and a locking device. When you are not sitting, press the switch and the spring will lift the chair. When you press the switch while sitting, your own gravity will hold down the chair, which is very popular with people.