Hello, This is Mamun. I have some experience of product uploading on website and web researching. Recently, I've done some Product research and collected about 30,000 ASIN's from amazon. And successfully completed that work. So, now I can do this job perfectly without any duplicates. Before you give me this work, please make sure you have product details perfectly and those products are available on Amazon. If you have more query about this gig before ordering, feel free to contact with me. Thanks