dustbin.
-Wastes: household waste, medical waste, kitchen waste, industrial waste, park waste
-Plastic products: plastic bottle, plastic frame, plastic block, plastic can
-Metal products: aluminum profile, oil filter, car shell, pop-top can, metal can
-Paper: newspaper, card paper, corrugated paper, copy paper
-Electronic appliances: refrigerator, circuit board, laptop shell, TV set shell, CD disk