Bottle cap: aluminum bottle cap is printed in four colors, and the top "liquor" is printed with variable temperature ink, which will change from black to colorless when baked with fire, and then return to color after cooling; At the top, the brand logo adopts fluorescent anti-counterfeiting, and the green part of the trademark logo has a three-dimensional effect under ultraviolet radiation; There are three rows of code-spraying marks on the cover, one is the production date and shift, the second is the random anti-counterfeiting code, and the third is the product batch. Bottle body: the bottle is patented, and the bottom of the bottle has the words "Gold Medal Co., Ltd." and the mold number. Label: 125ml Jin Jiu is produced by automatic line, so there is a "clearly visible horizontal line" on the back of the label. Specifically, there are clear glue marks on the back of the label through wine.