One thing I've always wondered.

Designing a water block and selling it as yours isn't the same as actually making a water block.

For instance, you see a lot of air coolers based on the Zalman design (such as the VF card coolers).

Do D-Tek actually make their water blocks? Or do they design and have them made by a capable third party with CNC machines etc?

We know Radiators are done like this and just rebranded. Masterkleer tubing is also the same which is why you get users who have clear Masterkleer and others have cloudy.