2. 914 Series（ air suspension seat）
Basic functions: the backrest elevation angle adjustment(80±41°), front and back position adjustment, front and back height adjustment, with vibration lock, double locked slide rail, body weight auto-adapted(Maximum weight:130kg）.
Seat cushion depth adjustment
The above optional parts can be added or subtracted according to the customer's requirements；The above adjustment functions can be put to the left or right according to the customer's requirements;