Changzhou Wujin Jiahua Chemical Co., Ltd

Providing quality testing instrumentation and technical support services for research and testing laboratories has been our specialty for more than 50 years. Meeting your testing needs is the primary focus of our business, which is why Koehler Instru

Shanghai Hengxing Company is a control valve enterprise that integrates research and development, production, and sales. For many years, the company has relied on the technology of Shanghai Instrument Research Institute, closely followed the developm