Beijing Hengan Instruments Co., Ltd.
Shandong Renke Control Technology Co., Ltd
Jiangsu Leer Environmental Technology Co.,Ltd.
Huizhou Lvke Environmental Protection Co.,Ltd.
Yuxing Technology Development (Shenzhen) Co., Ltd.
Tianjin Zwinsoft Technology Co., Ltd
Wuhan Tianhong Instruments Co., Ltd.
Suzhou Tianyi Xinde Environmental Protection Technology Co., Ltd.
Zhejiang Ruiqi Testing Technology Co., Ltd.
Dehang (Tianjin) Intelligent Technology Co., Ltd.
Henan Kallu Electronic Technology Co., Ltd.
Shenzhen Kelaida Environmental Protection Equipment Co.,Ltd
