auditorium chair, cinema chair, theater chair, auditorium seating, cinema seating, theater seating, lecture hall chair, auditorium chair, cinema chair, theater chair, auditorium seating, cinema ... 2. Foot rest: Die-casted with high-strengh aluminum alloy.3. Sponge: It adopts the high-density ... reture noise.7. Writing board: It adopts the aluminum alloy supporting structure. And the board adopts the ...