Hi - SaleHoo only lists wholesalers of designer replicas (meaning look-a-likes without any branding or logo), rather than actual brand-name replicas bearing the brand name or logo.
Unauthorized use of the name, logo or brand name of a company is a violation of the Intellectual Property Rights law.
When goods are imported that are breaking this law, Customs has the right to seize and destroy goods. Read more about it here:
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Brand names are becoming more stringent in their efforts to clamp down on counterfeit goods as the number sold online have ballooned. Last year for instance, Louis Vuitton filed a lawsuit against eBay: Link hidden: Login to view
If you search Google for 'intellectual property legislation' you'll be able to find out more. Different countries have slightly different policies. Wikipedia has a good guide with references: Link hidden: Login to view