Puyang Zhongyuan Petrochemical Industrial Co. Ltd.
Suzhou Sanhua Air-Conditioning Parts Co. Ltd.
Chaoan Shunfa Hardware Products Co. Ltd.
Shanghai Laitai Bio-Environmental Technology Group Co., Ltd.
Shenzhen Taiji Opto-elec Co., Ltd.
Williams Suzhou Control System Co. Ltd.
Shaanxi Huada Technology Co. Ltd.
Elektroteile GmbH
Beijing Beijiao Xintong Technology Co. Ltd.
Rumpler Technologies SAS
Henan Binkang Intelligent Equipment Co., Ltd.
Hansung Electric Industrial Co. Ltd.