Standard configuration description:

Back sponge: cold foaming and high rebound set pu sponge is used for one-piece foaming, with a density of up to 55kg / m3.

Block cotton: cold foaming and high rebound set pu sponge is used for integral foaming, with a density of 60kg / m3. It is not easy to deform after long-term use; 1.5mm thickened steel frame + serpentine spring is built in the block cotton, and black non-woven fabric is used as the partition layer, so the block bag is not easy to deform and durable;

Base and back outer board: adopt high-quality multi-layer rotary cutting birch veneer to be hot pressed with formaldehyde free environmental protection glue, with a thickness of 16mm;

Fabric: made of high-quality hemp fabric; seat back cable positioning and padded with mercerized cotton;

Chair foot: adopt high quality 2.0 cold-rolled steel plate, steel pipe is formed by die stamping and welding, square independent stand foot; handle by grinding, polishing, derusting, phosphating, electrostatic powder spraying, high-temperature oven and other processes; touch cloth side plates on the left and right sides; stand foot is under ventilated circular independent stand foot, hidden ground explosion screw, covered by steel cover; surface is treated by high-temperature spray molding;

Writing board: high quality aluminum alloy bracket, triamine board base material pasted with fireproof board;

Handrail cover: it is made of imported log and polished and sealed for 5 times, and the paint is made of Dabao paint imported from Taiwan;

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

Explosion screw: stainless steel hexagon socket head cap screw and zinc plated expansion nut are used.