Beijing Tongyuehuifeng Technology & Trade Co., Ltd. is the most professional portable medical cooler box suppliers and the technology leader in this line. The registered trademark is "Joyikey". The box can keeps the inside temperature between 2-8 degree Celsius or 8-18 degree Celsius to store and carry the medicine regardless of temperature environment.



Joyikey insists on the road of professional development. Since established in 1997, we have become the most professional enterprises engaged in the research and development of portable storage cold boxes. The...