The utility model is characterized in that the self locking type air spring has the functions of supporting and adjusting height, and the operation is flexible and the structure is relatively simple.
自锁型气弹簧同时具备支撑、调节高度的功能，而且操作十分灵活，结构相对简单。
All kinds of seal type can suit different medium. It is especially suitable in the condition of adjusting, cutting off and self-protecting quickly.
采用多种密封形式能适应不同的介质，特别适用于调节切断和要求快速自保的场合。
All kinds of seal type can suit different medium. It is especially suitable in the condition of adjusting, cutting off and self-protecting quickly.
采用多种密封形式能适应不同的介质，特别适用于调节切断和要求快速自保的场合。
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