Standard configuration instructions:

　　Back sponge: It is formed by cold foaming high resilience shaping PU sponge integrated foam molding, density up to 55Kg / m3.

　　Block: Made of cold-foamed high-resilient PU foam in one piece, with a density of 60kg / m3. Long-term use is not easy to deform; the seat cotton has a built-in 1.5mm thick steel frame + serpentine spring, and a black non-woven fabric is used as a partition. The seat bag is not easy to deform and durable;

　　Seat, back outer panel: high-quality multi-layer rotary cut birch veneer with formaldehyde-free environmentally friendly glue hot-pressed, the thickness is 16mm;

　　Fabric: Use high-quality hemp fabric; seat back cable positioning and cushioned mercerized cotton;

　　Chair legs: using high-quality 2.0 cold-rolled steel plates, steel pipes stamped and welded by molds, square stand feet; and processed by grinding, polishing, rust removal, phosphating, electrostatic powder spraying, high temperature oven, etc. Side panels;

　　Writing board: using high-quality aluminum alloy material bracket, triamine board substrate with fireproof board;

　　Armrest cover: It is made of imported logs after 5 times of polishing and sealing, and the paint is imported from Taiwan.

　　Recovery function: adopt spring and damping gas rod slow rebound mechanism.

　　Earth explosion screw: stainless steel hexagon socket head screw and color zinc-plated expansion nut.