Class 31 in trademark registration is a category in the Nice Classification, which mainly covers goods in the fields of agriculture, horticulture and forestry. The following are some common examples of commodities in Category 31:

1. Crops: including various cultivated crops, such as grains, vegetables, fruits, nuts, beans, strawberries, grapes, etc.

2. Flowers and plants: including various flowers, indoor plants, garden plants, flower seedlings, etc.

3. Forestry products: including wood, wood chips, wood products, wood chips, charcoal, etc.

4. Feed and animal feeding supplies: including animal feed, feed additives, feeding supplies, pet food, etc.

5. Breeding and seeds: including seeds, seedlings, breeding materials, etc. of various crops and flowers.

6. Agricultural and gardening tools: including agricultural tools, gardening tools, agricultural machinery and equipment, spray equipment, etc.

7. Aquaculture products: including various farmed animals, poultry, fish, bees and their products, etc.

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