Yuhuang ndi kampani yotsogola yopanga zida zokhala ku Dongguan, China.Ndi cholinga chathu chachikulu pa kafukufuku, chitukuko, ndi kupanga zomangira zosakhazikika, timakhazikika popereka mayankho okhazikika kuti tikwaniritse zofunikira za makasitomala athu.