Hui Mei Luxury Upholstered Auditorium Chair Blue or Red HMZX-004

Material Description:
1. Sponge:
 Adopts high-resilience polyurethane cold foam one-time molding technology, featuring heat preservation, heat insulation, sound absorption, shock absorption, anti-static, and good air permeability. The fabric and high-resilience shaped sponge of the backrest and seat board are tightly combined to ensure beauty and durability. The sponge test report complies with GB/T10802-2023, with rebound resilience rate not less than 48%; GB8624-2012 combustion performance grade B1; GB/T20285-2006 smoke toxicity reaches ZA2 level or higher.
2. Board Material:
 The rear part of the chair backrest and the bottom of the seat cushion use E1 grade multi-layer board covered with red beech wood veneer and hot-pressed in one-time molding. The thickness of the backboard is 18mm, and the thickness of the seat board is 14mm. The seat board is equipped with sound-absorbing holes to enhance the sound absorption function of the chair. All board surfaces are sprayed with high-quality, environmentally friendly paint, featuring high precision, corrosion resistance, scratch resistance, and easy cleaning and maintenance. The water-based paint test report shall comply with GB18581-2020: TVOC content ≤48g/L; formaldehyde content ≤14mg/kg; total lead content not detected; soluble heavy metal content: cadmium (Cd), chromium (Cr), mercury (Hg) not detected; GB/T20285-2006 smoke toxicity reaches ZA2 level or higher.
3. Fabric:
 Adopts high-grade special seat fabric, with high wear resistance, strong permeability, no fading, anti-static, stain resistance, and good sound absorption effect. The fabric is sewn and bonded to the sponge with high-temperature-resistant and low-temperature-resistant, strong, and environmentally friendly adhesive. The appearance is flat and wrinkle-free. The fabric test report complies with GB18401-2010: formaldehyde content (mg/kg) not detected; color fastness: water resistance, acid perspiration resistance, and alkaline perspiration resistance reach level 4; GB8624-2012 combustion performance grade B₂ or higher; GB/T20944.3-2008 antibacterial performance (%) not less than 99%; GB/T24346-2009 mildew resistance performance reaches level 1 or higher; GB/T20285-2006 smoke toxicity reaches ZA2 level or higher.
4. Armrest:
 Uses high-quality red beech solid wood, processed by degreasing and drying treatment, with moisture content less than 10%. The armrest width is 80mm. After fine processing, the surface is sprayed with polyester paint. The processing is precise, with sufficient hardness, no deformation, no cracking, luxurious appearance, comfortable hand feel, wear resistance, and durability. The solid wood board test report shall comply with GB8624-2012 combustion performance grade B₁-C; GB/T3324-2017 wood moisture content not more than 9.8%; QB/T4371-2012 antibacterial rate not less than 99%; JC/T2039-2010 mildew resistance performance reaches level 1 or higher; GB/T20285-2006 smoke toxicity reaches ZA2 level or higher.
5. Armrest Frame:
 Uses a 2mm thick cold-rolled steel plate, stamped and welded into shape. The side adopts inner wrapping and external embedding. The wooden board uses a multi-layer board with a sponge in the middle. The outer fabric uses special seat fabric with moderate softness and hardness, a comfortable hand feel, and firm bonding. Long-term use will not cause wrinkles, breakage, pilling, or fading. The steel plate test report shall comply with QB/T3826-1999 salt spray resistance ≥400h; QB/T1951.2-2013 adhesion level 1; GB/T20285-2006 smoke toxicity reaches ZA2 level or higher; QB/T4371-2012 antibacterial rate not less than 99%; JC/T2039-2010 mildew resistance grade reaches level 1 or higher.
6. Return Mechanism:
 Uses a tension spring and damping gas rod automatic return system, with strong rebound performance and accurate return. The return speed can be adjusted according to actual conditions. Noise ≤25dB, low failure rate, and flipping durability can reach 200,000 times without damage.
7. Floor Legs:
 Adopts a gravity design. The seat legs are formed by stamping steel plates not less than 2mm thick. The surface is electrostatically powder-coated. The bolt holes adopt a concealed design, which is beautiful and elegant.
8. Seat and Row Numbers:
 Made of special reflective materials. The numbers can be clearly displayed under weak light conditions.
9. Writing Tablet:
 Built-in folding writing tablet. The raw material of the writing tablet bracket is high-quality aluminum alloy. The writing tablet adopts a beech veneer multi-layer board, which can be stored inside the armrest legs, making reasonable use of the space. A pen groove is designed on the writing tablet to prevent the writing pen from slipping off. The multi-layer board test report shall comply with GB/T18101-2024 flame retardant B1-C grade; QB/T4371-2012 antibacterial rate not less than 99%; GB20285-2006 smoke toxicity hazard classification reaches ZA2 level or higher; GB/T34722-2017 physical and chemical properties - bonding strength: plywood substrate ≥0.70; surface bonding strength ≥0.60MPa; crack resistance reaches level 5; formaldehyde emission limit ≤0.05mg/m³; JC/T2039-2010 mildew resistance grade reaches level 1 or higher.
10.
 Within three working days after the announcement of the transaction result, provide the original inspection reports for the purchaser’s verification.