1. Fabric: use high-quality breathable cotton and linen fabric; 2. Sponge: high-quality high-density flame retardant sponge, covered with raffia or velvet, with anti-corrosion and anti-deformation protective film on the surface, high resilience, high durability, anti-shattering, anti-oxidation, density ≥ 35kg/m3, rebound rate ≥ 35%, compression set ≤ 10.0%, strong fatigue resistance, comfortable sitting, quality in line with the national standard QB/T 1952.1-2012 "Upholstered Furniture Sofa". 4. Frame: The frame is made of solid wood oak material, which is ergonomic.
