1. Yellow trash can: It represents a special trash can for medical waste, which is generally only used in medical places such as hospitals and health stations. Medical trash can
2. Red trash can: Represents harmful substances, sometimes marked in orange. Harmful substances include waste batteries, fluorescent lamps, paints, etc. that cannot be recycled...
3. Green trash can: Green represents kitchen waste, which can be used as fertilizer for plant nutrients. Kitchen waste bin
4. Black (gray) trash can: garbage other than harmful substances and recyclable substances, bricks, ceramics, slag and other wastes that are difficult to recycle...