1. Stainless steel is a corrosion-resistant and strong metal material, which is usually used in the manufacture of kitchen utensils, medical equipment, construction materials and so on. It is very durable as it has high hardness and strength and can withstand high temperature and pressure.
2. ABS is an engineering plastic with good chemical resistance, impact resistance and abrasion resistance, and is commonly used in the manufacture of plastic casings, cell phone casings, automotive parts and so on. It is not as hard and strong as stainless steel, but it is more flexible and processable, making it more practical in some applications.