Never done your line of products. But you can research

來源: FHZM 於 2009-11-05 20:45:24 [] [博客] [舊帖] [給我悄悄話] 閱讀數 : (193 bytes)

on eBay and Amazon to see how competitive your items are. If you take the lowest price and it is still at least 30-50% higher than your cost (USA cost: price+shipping), then you have a chance.

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