Flat bottom IP250 chromatography vial inserts supplier Aijiren. Aijiren 250ul Vial Insert, Glass Spring Bottom for 9, 10, 11mm Vials Type: IP250 Volume: 250ul. Dimension: 5.7x29mm. Material: Clear Glass Suit for: 9mm, 10mm, 11mm vial. Bottom: Mandrel with polymer feet. Product Catalogue – Zhejiang Aijiren Technology, Inc. – PDF Catalogs