1.back board of chair back board is made of high quality hot forming multiply plywood ,after more than a surface treatment processes, covered with polyurethane paints

2.backrest : polyurethane foam covered with high-level shape seat fabric ,lined with high-quality plywood

3.seat pan :polyurethane cold moulded  injection foam within steel structure

4.seat reset  mechanism :adopt slow rebound damping design

5.armrest :high quality carbon

6.leg of chair adopt high quality carbon steel plate ,molded by impacting and welding ,then resist soiling and rust prevention ,end with electrostatic powder coating

Auditorium chairs PVC/Cotton