Mechanics test equipment
     Suzhou Testing Instrument Factory
     Northwest Machine Factory
Climate and environment simulation equipment
     Guangzhou ESPEC Environment Equipment Co., Ltd
Shaoxing Hongbang Electronics Science and Technology Co., Ltd
Sichuan Danfu Refrigerant Compressor Co., Ltd
Wuxi Sunan Experimental Equipment Co., Ltd
Wuxi Zhonglian Electronic Equipment Co., Ltd