auditorium chair,Plywood chair back,solid-wood arm-rest, singel feet provided with ventilation opening. top quality,best price Detailed Product Description1) Feet: single foot provided with ventilation opening,the air-condition be from the floor.2) Wood:The chair seat and back is plywood,13mm thickness,3) Return fuction: using the return device of torsional spring plus damper ,this can adjust the ...