支撑气弹簧：

    也叫自由型气弹簧、支撑杆，是应用最为广泛的气弹 簧。它主要起支撑作用，只有最短、最长两个位置，在行程中无法自行停止。 在机械设备、家具等领域应用最为广泛。

Lift gas spring is also named kingh thead which is the most popular and widely used gas spring.It's main purpose is to support,it has only two conditions:the shortest and longest,it can not auto stop in a stroke,It'slongest when free and short when pressed by force and can evenreach the shortest.