1: Casters: ordinary casters, PU wheel (soft materials, suitable for wood flooring, and the engine room).
2: chair legs: the thickness of the iron frame directly affect the chair life. Surface treatment: polishing, painting, paint (surface gloss, easy to paint), plating to remove the Atlas (wood can not be plated), plating 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: hold the seat of the seat, the following with the gas rod connected.
5: Chair: from the board, sponge, fabric composition. The quality of the board is usually not felt by the consumer. Sponge: renewable cotton, new cotton. 99% of the manufacturers are used with both, the thicker the more hard, the higher the cost, the thickness of the appropriate hardness can be appropriate. Hand seat, fabric: Ma Rong, mesh, leather. Plastic frame pressure on the cloth. Such chairs are more breathable.
6: handrail: thickness affects quality.
7: seat back seat (corner code): seat and back is split, the use of steel or steel plate, steel, usually 6mm or 8mm thick. But the width of less than 6cm of steel, must be 8mm thick.
8: back: steel frame, plastic frame chair, made of mesh combination, with breathable.
9: waist pillow: reflect the comfort of the chair.
10: headrest: the performance of the chair comfort.