Chengxian Rongle Chinese Medicinal Materials Sales Department. According to Baidu map information, the Chengxian Rongle Chinese Medicinal Materials Business Department purchased Zhijia Ke. The address is No. 3, Beiquan Village, Chengguan Town, Chengxian County, Longnan City, Gansu Province. Cicada shell is also called cicada shed, which refers to the layer of outer shell removed by cicada during the process of metamorphosis. It can treat many diseases. It has the functions of calming wind and spasm, dispelling wind and heat, relieving pain and itching, and supplementing nutrition.