塑料袋在乳制品工厂自动装满牛奶，并沿着传送带移动，特写镜头。食品行业，牛奶灌装技术。乳制品包装。

bags at a dairy factory are automatically filled with milk and move along a conveyor belt, close-up. Food industry, milk bottling technology. Packaging of dairy products. Dairy plant, dairy factory. The milk is sterilized and automatically poured into plastic bags on a conveyor belt, stored in a warehouse, and then loaded into delivery vehicles. Dairy products are in demand among buyers, and the company sells its products at retail and wholesale. High quality vertical video