Aroma Chemical Services International GmbH

SCHLENK employs about 950 members of staff worldwide and acts as a leading international manufacturer of metal powders, pigments and foils.

Zhengzhou Huagesen Electronic Technology Co., Ltd. specializes in the production and sales of explosion-proof oxygen analyzers, dew point analyzers, gas detectors, high-purity oxygen analyzers, trace oxygen analyzers, oxygen concentration detectors,