1) Middle-class executive chair back; Patented products.

2) Customized white nylon back frame with high rebound mesh;

3) 60-shaped sponge cushion with seat shell;

4) Sitting back with fixed armrests;

5) Lock the chassis in place;

6) 85 # countersunk three centimeter electroplated steam rod;

7) 330 # aluminum alloy high leg;

8) Silent casters