1. The chair is fully produced according to the human system engineering. It also fit for the human body curve and fully considers the comfort of long-time sitting. 2. It saves much space, more comfortable and more luxurious. 3. The spongy of backrest and seat cushion adopt the high- resilience PU; The shape wont change after long-time usage. 4. The wooden board of backrest and seat cushion adopt the multi-layer hard wood board and beech which are formed by high pressure. 5. The armrests adopt the imported beech by dehydration and drying by heat. The hydrous rate is less than 12%. Then have spray-painted on the surface after the careful manufacture. 6. Theres resilience apparatus inside the seat cushion, to make sure the seat cushion can turn back after people stand. No shock and any noise. 7. The chair can be equipped the concealed tablet which adopts the imported beech with the spraying painting of imported PE. 8. The chair brackets all adopt the high quality iron and iron board by stamping, welded by CO2. 9. The chair fabric adopts the wool and flax blending fabric, which is dealt with flam retardant. Fire-prevention, wear-resistant, sound-absorption, pollute-prevention. (Color can be chosen. ) 10. The landing feet could support more pressure than ordinary chairs, and the feet board is fixed on the ground with the expansive screw which set inside the feet board, its no dust, elegant appearance. All metal surfaces is dealt with Phosphorization and acid pickling, then have static electricity spray-painted. 11. The load-bearing machine (the brackets), the seat cushion, and the back cushion are easy to be installing and unloading. It also can be changed among different chairs. 12. Each chair can be rationed with the number plate which is made of light reflection material. It can be seen clearly in the dark place.