Today I got my package, although I haven't got any reply from the company for the incorrent tracking number.
By the way, the surface finish was really rough, so I lapped the surface. Then, maybe I lapped too much and/or the retention kit was too soft (loose), so actually I got the worse performance than before. My last coolermaster gave 16C higer than ambient temperature, but this one gave 22C higher temp! So I switched the retention kit to the one which came with the coolermaster, and now it gives only 12C higher temp, which is nice. (I have Gigabyte M/B so it gives higer temperature than other M/B). My only and big concern is that there is too much pressure on the socket's hook, so it may break someday....
Anyway, thanks for the deal.