1. The working surface of the seat shall not affect the appearance defects. The spray paint on the non -working surface should be uniform and firm, and there must be no defects such as the lacquer layer peeling and rust.

2. The tight nut should be flexible, the lock should be reliable, and the mobile parts should be flexible.

3. Filtering magnetic table seat adjustment agency should not be less than 2mm

I ~ IV Table seat work magnetic P1 and remaining magnetic P2,

4. When the table seat is applied to the tablet holes and applies 1N along the axis line, its deformation (II ≤ 0.09), (III, IV ≤ 0.11).

5. The plane tolerance of the working surface of the seat is 0.03mm, which is only allowed to be concave. Not counting within a range of 1mm edge of the working surface.

6. The surface roughness of the working surface of the seat is 1.6um ..

7. Labels and packaging, the name or registered trademark of the manufacturer, product name, specifications or size in the manufacturer of manufacturers. Before packing, rust should be treated and packed properly