Rex Gummitechnik GmbH
In the area of chemical protection and the production of rubber form parts we combine many years of experience with highly developed manufacturing facilities.
Introduction
In the area of chemical protection and the production of rubber form parts we combine many years of experience with highly developed manufacturing facilities.

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Founded in 2000, ChangChem specializes in developing, manufacturing and marketing fine organic compounds and intermediates for the pharmaceutical and OLED industries.
ChangChem's customers include biotech, pharmaceutical, OLED, research comp...