I have no idea, never used them. Do they publish spec sheets for their ICs? You'll want to know the pressure drop across the IC and some form of thermal conductivity or exchange efficiency data which you may use to compare to others. I don't know of many inexpensive manufacturers who provide all this info though; They generally just figure 'Hey, it's made in China for pennies, but it's still better than stock, so who cares? We both win!'
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