1.Seat/Back foam:Formed by high-density super-soft PU cold foaming.Seat foam density is 50kg/m3, the back foam density is 45kg/m3.
2.Seat/Back shell:  Multi-layer plywood after heat treatment, with painting finished.
3.Armrest and leg:Made form top quality steel after precise pressing and welding, and gone throuth procedures of polishing, anti-rusting, poshping, spraying and powder coating.  
4.Armrest cover: Solid wood.
5.Seat reposition:gravity balanced mechanism, for flexible recovery, and free from noise.
6.Fabric:1.premium various cloth 2.Genuine leather. 3.Artificial leather.
7.Writing Pad:folded one with MDF board,painted or melamine.