FYI.
These are the tariffs Canada has imposed on the USA for years:
Milk: 270%
Cheese: 245%
Butter: 298%
Chicken: 238%
Sausages: 69.9%
Barley seed: 57-57.8%
Copper: 48%
Aluminum: 45%
Steel: 25%
Cars: 45%
TVs: 45%
Eggs: 163%
Wheat: 94%
Bovine/Meat: 26.5%
Source : Global Affairs Canada