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This is our latest development which is especially popular in the Europe and American
1. Pneumatic level height manual adjustment
2. Full in closed tension adjustment knob
3. Tilt lock and unlock
4. Heavy Duty Spring
5. Optional taper tube(B) and taper hole
6. Various assembling dimension available Pass BIFMA Test'
managerment chair, senior management chair, mutil-task chair
Being one of main products , there are a wide selection of mechanism . Height adjustment and tilting are two basic function. In addition, heavy duty and permanent contact in locked position are also typical function.