1: Casters: Ordinary casters, PU wheels (soft materials, suitable for wood flooring, and machine rooms).
2: Seat foot: the thickness of the iron frame directly affects the service life of the chair.
Surface treatment: polishing, painting, paint (surface gloss, not easy to paint), electroplating delete Atlas (wood frame can not be electroplating), electroplating quality is good, it is not easy to rust.
3: Gas rod: Also known as the extension rod, used to adjust the height and rotation of the chair.
4: Chassis: The part that holds up the seat, which is connected with the gas rod below.
5: Seat: Made up of planks, sponges, fabrics. The quality of the planks is usually not felt by consumers. Sponge: Recycled cotton, new cotton. 99% manufacturers are the use of the two, the thicker the harder, the higher the cost, the appropriate thickness, the appropriate hardness can be. Press the seat with the hand, Fabric: Maron, mesh cloth, skin. Plastic frame pressurized Internet cloth. This type of chair is more breathable.
6: Handrail: Thickness affects quality.
7: Chair Back seat connection (corner code): Seat and chair back is split, using steel pipe or steel plate connection, steel plate, usually 6mm or 8mm thick. However, steel plates with a width of less than 6cm must be 8mm thick.
8: The back of the chair: steel frame, plastic frame chair, made of a combination of mesh cloth, with breathable.
9: Waist Pillow: reflects the comfort of the chair.
10: headrest: Shows the comfort of the chair.