... part,gas spring,gas lift,gas cylinder,gas strut office chair part,chair part,furniture part,gas spring,gas lift,gas ... / 180 / 200 / 260mm,etc.2. Function:Height adjustment,up and down freely,no noise,swivel freely3. Surface finishment: powder coating ... 3/class 4)6. General use: office chair/ furniture chair/ bar stool/ Executive Chair/ Lift Chair/ Leisure chair for home furniture7. Pressure (N):300-- ...