Enamel products are made by coating titanium white, antimony white and antimony titanium on the surface of thin steel sheet and firing at 8-9C C.. Enamel daily products are mainly pots, bowls, cups and the like. The key points of quality identification and purchase are as follows. (1) Check whether the product is affixed with the manufacturer's trademark, batch number and inspection certificate. (2) Check the product grade. Each product has a grade mark, and there are two ways to divide the grades: 1. Divide them into "first-class products", "second-class products" and "off-grade". "Divided by" qualified products "and" unqualified products ". Pay attention to discrimination when buying. (3) Check the appearance quality of products. It is required that the enamel surface should be smooth and evenly coated, and there should be no exposed metal bubbles, concave and convex points that affect the appearance, and the appearance should be good. There are three kinds of defects in appearance quality: 1. Defects that affect service life. Such as scale explosion, crack, porcelain removal, explosion point, trachoma, bubble, desoldering, serrated crack at the edge, etc. 2. Defects that slightly affect the service life and beautiful appearance. Boiling hole point, coke edge, concave and convex spots, black lines, prickles and bottom deformation. 3. Defects that affect the appearance. There are bruised porcelain, uneven edges, uneven porcelain surface, miscellaneous points and different colors, blurred decorative flowers, white lines and so on. 4. Choose your favorite color; Patterns and styles. Pay attention to whether the spray (printing) color is bright and whether the decoration is clear. 5. Products with a cover should depend on whether the cover and the body are consistent. The cover should be able to coordinate and match and rotate flexibly, but there should be no straight seam gap when pushing the cover by hand. The colors of the cover and the body should be basically consistent. If there is a stainless steel wrapping, the steel ring should be firm, the surface should be smooth, and the welding head should not stab the hand.

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