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. Air pressure rod: using high-quality air pressure rod, can withstand 300kg pressure, the lifting is light and flexible, the lifting cooperation of the screw mechanism is good, the pneumatic lifting is stable, there is no air leakage, no noise, and the lifting is 300,000 times without failure; multi-functional chassis;
4. Tripods and casters: steel five-star tripods, casters are made of reinforced nylon 66% plus 34% fiber heavy wheels, reciprocating 120,000 times under pressure of 750 pounds without damage, small moving noise, high wear resistance.