1. High quality material and can keep warm. 2. Made by Integral stretching without joint. 3. Suface smooth and clean. Product: Aluminium milk barrel/BucketMaterial: AluminiumVolume: 10L, 16L, 20L, 25L, 30L, 32.5L, 40L, 50LUsing : Milk, other food, crude drug, chemical raw mateiral, and etc.