Avista OIL AG

clean-tek is an experienced, qualified supplier of high quality cleanroom components. We are specialised in the design and production of wall and ceiling systems.

In our R+D+i department, we develop IVD instruments with the most advanced technologies.

HOFFMANN MINERAL GmbH is a German manufacturer of a natural mineral filler, named Neuburg Siliceous Earth, which is a combination of corpuscular Neuburg Silica and lamellar kaolinite: a loose mixture impossible to separate by physical methods. As a r