Mastelf HPLC Vials, Cap and Septa Manufacturer. HPLC Vial, Recovery Vial, Headspace Vial, Plastic Vial, Syringe Filter, GL45 Bottle, Centrifuge Tube, etc. 0.2ml-0.5ml Amber Screw and Crimp Inner Recovery Vials info@mastelf.com 2020-07-05T00:24:13+08:00 1.5ml 9mm Screw Thread Autosampler Vials for. Chat Now Inquiry.