Not too offend. But, coming to a English forum and posting a link to another language website doesn't help us help you. The translate ability of chrome is limited at best.
When looking for fans for a radiator you want to look at details like static pressure. Most people go to the Corsair SP series fans. But, this entirely depends on your goal. The SP series has PWN, performance, and quiet edition. No, these fans are not the "best". But, being the best is subjective. To me they are the easiest to suggest because they are very popular and not ugly.
So, what do you want? really good at cooling? Quiet? We need details to really provide help of any sort.
I doubt those fans would really be an upgrade from the stock.
It appears either A.translation failed or B. that website has false information or an old version of those fans.
http://www.newegg.com/Product/Product.aspx?Item=N82E16835129075
It seems these fans have much higher cfm on newegg. I still don't see anything about Static pressure for those fans and I'm not familiar with them.