Back:high density and soft P.U,highly active inflaming retarding element,coldly   firmly becomes spongy a body forming .the density of sponge is 56kg/m².

 Base:high density and softP.U,spring erection of steel work,coldly firmly becomes spongy a body forming.

 Shell:excellent hih density hardwood splint that 18mm thick,elegant appearance and resistance to deformation.

 Coat:after anti-corrosive treatment,electrostatic powder spraying.

 Plus material:high class special cloth,inflaming retarding,fouling resistance,fastness,it can also choose leather.

  Seating washer retroflexion:rigging or damping spring automechanism.

  Written organization: back writing pad.High strength casts makes turns over the bearing,the board is the high density board,outside covers the melamine surface.

  Station foot:high quality 3mm cold rolling high-carbon steel oil pressure weldingsystem forming.

  Railling:import beech,oaken railing,high elasticity dermatoglyph P.U railing.