The theatre chairs in the auditorium are made of polyurethane cold-setting foam, the seat density is 42Kg/M3, the thickness is 70mm, the backpack density is 40Kg/M3, the thickness is 70mm, the elasticity is good and the deformation is not changed.
The inner, outer, inner and outer shells are made of polypropylene with a thickness of not less than 6 mm. The outer shells have 710 sound absorbing holes and sound absorbing wave plates. They have good sound absorbing function and do not deform for a long time.
The seat pack is returned by a double-dipper return device, the rubber pad is used to prevent vibration, and a reset positioning device is installed, so that the reset is accurate and noiseless.