All Di Zhao instruments are made with careful attention to precision in their factory in Tianjin, China. The workers are all superbly trained directly by Mr. Zhao. The flutes are all padded with Pisoni pads, and all pads are partially shimmed like professional flutes. All instruments are made to achieve smooth key action, fast response, and excellent resonance.
All Di Zhao instruments are assembled, tested and adjusted by Di Zhao in the United States before being shipped. Each headjoint is specially hand-cut and feature silver risers, yet another feature that makes Di Zhao student models play like professional handmade flutes. ALL flutes are tuned to pitch 442. The wood in their grenadilla flutes has been carefully selected, treated, and seasoned to resist changes in temperature and humidity.