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Macherey-Nagel was founded in 1911 in Düren as a specialist manufacturer of filter papers. Since that time, we have evolved into an innovative international company for chemical and biomolecular analysis. MACHEREY-NAGEL stands for innovative and ...

NOVAIR is the world’s leading manufacturer of in-house oxygen, nitrogen and medical gas generators. NOVAIR has distribution networks, partnerships, and thousands of customer installation sites that span the globe. With more than 45 years of presence ...