Staff chair Series: Sponge: High resilient polyurethane foam (cold foam) 40 kg / cubic meter. Accessories: Bow to teach the use of high-quality steel production, one bending, surface plating, leather armrest palpable. Tripod: Nuo alloy plating bow stand, do not damage the carpet surface, the static load 500 kg. Back / Seat plastic shell: The import of native PP plastic, environmentally friendly, non-combustion and other functions, but not easy to crack.