What are the important points that need to be paid attention to when selecting materials for auditorium chairs suitable for schools?

1. The seats and backboards of auditorium chairs suitable for school use are made of seven-layer beech wood molded boards, which are made of high frequency and high pressure. They have strong support, impact resistance, deformation resistance and unique honeycomb sound-absorbing pores; overall sound absorption. With a rate of 0.5, the entire venue can eliminate echo within 0.1 seconds, ensuring good breathability of the seats and no noise in the entire venue.

2. The seat and back foam are made of polyurethane foam. According to the engineering principles of human sitting posture, it is made of cold-set foaming to resist deformation, high elasticity, comfort and durability; the seat foam density is >50kg/m³, and the back hair is Foam density＞45kg/m³.

3. The fabric is made of imported linen flannel, and its flame retardant performance has passed the national qualification test standards (a variety of colors are available).

4. The armrest surface is made of solid beech wood, and the armrest legs are made of high-quality aluminum alloy and die-cast with a hidden writing board;

5. The central axis uses a steel rod with a diameter of Φ14 to support the seat and for seat reset; the seat uses a built-in automatic recovery device so that the seat can automatically reset with fast recovery speed, no noise, and zero faults.