A very good quality & very cheap copper radiator.

I want to build my own watercooling system.what do you think about the blackice ,heatcore type thin parallel radiator & the club type radiator---- http://www.rebbs.com/dispbbs.asp?boardID=72&ID=6213
this link is a chinese forums in China.it provide very cheap watercoling kit.the quality is also good as other westen countries's products.eg.full set of watercooling sstem only cost below US$100.

what do you think about the preforamce of this copper club radiator compare with Bick ice Extreme II and heatcore ?
P/S this copper made club radiator only cost US$30

Most people don't use those anymore because they are too restrictive of the flow. The small tubing and all the U turns are causing the problem. A heatercore would do better for sure, a BIX would probably do better too, but I'm not 100% sure about that.

peace.
unloaded

I'd bet a BIX would do better by a good margin, and so would a heater core.

For $30, that's not too bad, but you can get a heater core for the same or less sometimes.

I have no idea what kind of heater cores are available in Hong Kong but they would be your best bet, I am sure.

You want one that has big inlet/outlet connections (same size as your tubing or bigger- NEVER smaller!) and is as big as will fit in your case

You should be able to do better than those, and at a cheaper price.