1. Green iron bar: green food, green food; iron bar refers to iron bar yam.
2. Huaifu delicacies: Huaifu, the name of the place of origin; the treasures embody the green color.
3. Huaifu yam: Huaifu, the name of the place of origin; yam is the name of agricultural products.
4. Tiegun Huaifu: origin plus characteristics.
5. Huaifu treasures: origin and characteristics.