Classification of bone china cups

The grades of bone china cups are classified in bone china. The grades of bone china are different. The classification method of bone china grades will be introduced below: it can be roughly divided into AAA grade, first grade, second grade, and third grade. One criterion for distinguishing grades is to look at the number of defects in the porcelain itself. The range of defects includes the number of black spots, the number of deglazes, and the number of defects in the product itself. 1. AAA grade: In the form of porcelain white porcelin dinnerware or embryo (embryo form refers to the shape without flowers and without glaze, the whole body is just a white body in the shape of porcelain). The defective embryos are then subjected to the process of embossing, glazing, and furnace firing. After the oven is released, the finished products are selected once to remove the defective products, thus producing AAA grade products; 2. First-class product: First-class product The embryos of the product are selected from all the embryos (good and not good), and the embryos without obvious defects are selected and processed to produce first-class products. International standards allow the existence of first-class products. There are no more than 5 defects; 3. Second-level and third-level products: I won't elaborate on it, but there may be any defects. Haha, products with a lot of black spots.
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