1. Material: PU leather
2. Sponge: high-density foam and pure cotton
3. Backboard: plywood, 12mm thick, pass environmental test
4. Armrest: Wooden-covered with stainless steel
5. Base: aluminum five star base, our own production
6. Mechanism: tilt mechanism synchronized mechanism with anti-shock function
7. Gas lift: past BIFMA test, SGS Quality Certification, insurance product, can use 100,000 times, 85mm gas ...
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