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 / back board: made of high-quality multi-layer rotary cutting birch veneer by hot pressing with formaldehyde free environmental protection glue, with a thickness of 16mm;

Fabric: made of high-quality special fabric, cotton covered process, wear-resistant, good air permeability, comfortable sitting.

Stand foot: high quality 2.0 steel plate is used for stamping and welding, and the independent stand foot is installed in a concealed way. The surface is processed by multiple processes, and the left and right sides are covered with side plates;

Handrail cover: imported log, polyurethane paint treatment.

Recovery mechanism: button spring + damping air rod recovery mechanism is adopted.

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