This is a very important term. Tolerance is the recognized allowable length or thickness deviation. Because of the production process of plates, it is difficult for various reasons. The actual thickness that comes out is often not up to the theoretical thickness. For example, a 6mm board is only 5.6mm. This is tolerance. In China, tolerance is often negative tolerance. When buying and selling boards, it is usually calculated according to the theoretical thickness, which is why the theoretical price is lower than the weighing price. The tolerance is also divided into sizes, and the price is also different. The price of the large tolerance is cheaper. For example, 6mm, if it is below 5.5, it is a large tolerance.
