There is a lot of knowledge about commodity symbols

The types of trademarks we are exposed to in various commodities, the meanings represented by various trademarks, and the symbols required for qualified products and famous and high-quality products.

Satisfactory answer:

Cloth: The quality of cloth depends on the color of the label. Red letters indicate first-class products, green letters indicate second-class products, and blue letters indicate third-class products. The words in black are substandard products.

Clothing: Clothing labels consist of three parts: body height, bust and body shape. For example, "170/90A", the number "170" before the slash indicates a height of 170 cm, the number "90" after the slash indicates a chest circumference of 90 cm, and the last English letter "A" indicates an average body shape. In addition to "A", "B" means slightly fat, "C" means fat, and "Y" means big breasts and thin waist.

Porcelain: The grade of porcelain is marked by geometric figures: a circle is a first-class product; a square is a second-class product; and a triangle is a third-class product.

Refrigerator: "☆" indicates the cooling capacity of the freezer temperature. The more "☆" on the refrigerator, the stronger the cooling capacity. [Shandong] Pang Jing