The series of drinks of Jinmailang, such as iced black tea or green tea, are all "one more bottle" promotional products with yellow bottle caps. Open the bottle caps, and if the words "one more bottle" are engraved in the bottle caps, you can exchange them for a bottle of the same product with the same specifications at the designated place.
Jinmailang Noodle Products Co., Ltd. was established in 1994, and is a national key leading enterprise in agricultural industrialization.