VDEh-Betriebsforschungsinstitut GmbH

ChemicalInfo, an IQVIA company, and makers of the Directory of World Chemical Producers (DWCP), is the most trusted resource of accurate information for the chemical and pharmaceutical industry worldwide. For over 40 years, we have collected, verifie

Henan Zhongke Engineering Technology Co., Ltd. is a key enterprise in Zhengzhou High tech Zone, specializing in the research and development, manufacturing, and processing of mining machinery and industrial beneficiation equipment. It is a joint-stoc