Chromatography Vials, Caps, Septa & Inserts, Tubes, Crimper Our major products are high performance liquid chromatography & gas chromatography consumables. Zhejiang Aijiren Technology, Inc. have been supplying to more than 70 countries, covers more than 2000 customers all over the world. 120 workers, 100,000 class cleaning room, ISO, GMP & Bureau Veritas certificated, this is how we keep high