AM-959B
1) Backrest: PP + fiberglass frame, mesh cover;
2) front & back, up & down adjustable lumbar;
3) Armrest: 4D Armrest;
4) seat: molded foam, with bottom plastic shell;
5) 3 angles locking synchro mechanism;
6) class 3 gas lift;
7) Base: 340 PP feet, 60 PU caster,