Back Frame:Nylon 
Back support:Finishing polishing of aluminium alloy        
Seat Frame :Nylon double frame
Fabric  :Taiwan Brand Fabric-KM series
Armrest  :4D aluminium armrest               
Mechanism  :Aluminium four-speed wired chassis                
Gaslift :4 class chrome gaslift Stroke 80 beam 80       
Base  :350mm Finishing polishing of aluminium alloy base HF       
Castor:65mm PU surface mute plating wheel
footrest  :full mesh footrest,  left and right adjustment rotation structure