回複：謝謝！還得多請教您

1) UPC or EAN:

buy it here, easy and cheap:

http://www.nationwidebarcode.com/

2) 產品列好後，Amazon怎樣才會把我的產品列在search的前幾頁？

amazon has their way of list the product, i didn't figure it out how it works

 check with them and give us an update