For example, if Steve and Freedom Kilts or Bear at Bear kilts were to claim that the kilts their made were made and marketed and designed under "their own label" and were

uummmmm..........swimwear...(hey, you swim in your kilt,don't you?)

we could import the material duty-free.

GOD, this is ARCANE.

Anyway,

Turns out that the general principles in Canada's import duties defines the price used as a tariff for "Most Favored Nations" (MFN's), and the tariff's charged on material from Commonwealth Nations is to average 54.6% of that levied on MFN materials. See the law I've copied and put in my gallery. It's screenshot of a pdf files snatched from the Canada Gazette, outlining the tariff on wool material over 400 grams per meter in the price we'd be paying.

You'll notice that the tarriff levied on such wool imported from Most Favored Nations is zero...it's free. Since Great Britain is a Commonwealth country, the tarriff that Canada levies on British wool is 54.6% that of any MFN, and fifty four percent of zero is zero.

In other words, there IS NO TARIFF (import duties) on British wool inported into Canada.

It took me about an hour and a half to figure this out.