1. Fabric: Use high-quality first-layer calfskin, thickness ≥1.5mm, tearing force ≥40N, coating adhesion fastness ≥2.5N/10mm; after liquid immersion, moisture-proof, anti-fouling and other processes, the leather surface is soft and comfortable , Lasting luster.
2. Sponge: Use high-quality high-density flame-retardant sponge, covered with drawn yarn or velvet, with anti-corrosion and anti-deformation protective film on the surface, high resilience, high durability, shatterproof, anti-oxidation, rebound rate ≥35%, stretch Tensile strength ≥90kPa, elongation ≥130%, tensile strength after dry heat aging ≥55kPa, tensile strength after wet heat aging ≥55kPa, strong fatigue resistance and comfortable sitting feeling.
3. Tripod: Use high-quality sprayed metal tripod, processed by pickling and phosphating, and the surface electroplating process is ergonomic.