All atomizers are made in China. There may be a rouge company outside of China making these devices, but most will be from China. If you buy and e-cig starter kit, the batteries and atomizer will have been made in China. If you want a U.S. made battery pack (the thing that supplies power to the Chinese atomizers), there are several to choose from.
The Greek device costs way too much, and the maker cannot guarantee that the threads from one device to the next will be the same. Stick with outstanding devices from SuperT Manufacturing, AdapteveR, Puresmoker.com, Litecigusa, and nhaler.com etc.