material : 
oscar/fabric 
backrest and seat :
moulded plywood 12mm with moulded high density foam 
(automotive standart), dow material ex usa
upholstery : 
ateja or equal 
armrest :
reengeneering polypropylene 
mechanism : 
thick plate 2.3 hdt mechanism 
warranty :
2 years mechanism, gaslift, 
footbase & castor 
footbase :
alumunium 
castor :
nylon ex import 
certification :
sni & iso 9001