1. Stainless steel mirror panel surface can not have scratched lines, this is a key point that directly affects the quality of stainless steel mirror panels.
2. Stainless steel mirror panel can not have trachoma; trachoma is a small hole that can be seen by the naked eye on the mirror panel. This is also a key point. There is a great relationship between trachoma and raw material sheet.
3. The stainless steel mirror panel can't have the grinding head print, the grinding head print is one circle and one circle, which is the mark left by the 8K machine grinding head and the panel without contact.
4. Stainless steel mirror panels can't have roller prints. This is the 8K machine wheel left, which is a row of rows of wheel prints.