... ,CA117,TB117 The specifications of our Auditorium chairApplicable sites:Auditorium,Conference hall,Lecture room, Convention center,Convention centre, Parliament,Congress ... cushion are made of molded PU(polyurethane) foam upholstery with fabric or PU artificial leather.3. PU foam density: ... . Steel leg is made of cold-rolled steel tube with powder coating.7. optional retractable writing table on arm. ...