Guangming 1.35 liter Ubisoft milk has no inner cover because it is convenient and environmentally friendly to drink. Official website information of Bright Emulsion shows that Bright1.35L Ubisoft milk has no inner cover, because it is convenient for customers to drink and environmentally friendly. Therefore, Guangming 1.35 liter Ubisoft milk has no inner cover because it is convenient and environmentally friendly to drink.