Capillary is an essential consumable in HPLC, which plays an important role in connecting the instrument modules, and chromatographic columns. Chromasir® team invents three capillaries and related fittings, makes into three capillaries (Traline series, Ribend series and Supline series) in different methods, and obtains many patents. The capillary series has been inspected by SGS, fully confirming the capillary material. The capillary of Chromasir® is compatible with more than 95% HPLC.