In October 2019, Zhangzhou Wanbao Energy Technology Co., Ltd. purchased 20 double-layer constant temperature and humidity test chambers from our company, and the customer experience was very good. Therefore, in July 2020, our company once again cooperated with Zhangzhou Wanbao Energy Technology Co., Ltd. to produce 8 double-layer constant temperature and humidity test chambers for customers. Guangdong Kebao will also bring better products and services to customers.