
Yanggu Jixing Drilling Tools Co., Ltd.Shandong Sheng, China

Streck Laboratories International, Inc.Nebraska, United States

Qingdao Blueside Biotechnology Co., Ltd.Shandong Sheng, China

Dongguan Zehong Machinery Co., Ltd.

Tuenkers Machinery & Automation Technology Co. Ltd. ShanghaiShanghai Shi, China

Shenzhen Zhengyangxing Technology Co., Ltd.Guangdong Sheng, China

China Power Construction Railway Construction Investment Group Chongqing Co., Ltd.Chongqing Shi, China

Beijing Hangda New Material Technology Co., Ltd.Beijing Shi, China

Beijing Booster Boiler Co. Ltd.

Matcon (R&D) Ltd.

Xi'an Taipu Safety Technology Co., Ltd.Shaanxi Sheng, China

Symbiosis Earth Biotechnology Co., Ltd