Shaoxing ALWSCI Technologies Co.,Ltd is one of the leading China screw top headspace vials manufacturers and suppliers,Website:http://www.alwsci.com, welcome to wholesale cheap screw top headspace vials, 10ml glass vial from us.  FEATURESGuaranteed not to burst from pressure.Precision Screw Thread Insure Sealing.Eliminate Errors Due to CRIMPING.Screw headspace vials, caps and septa are designed especially for use with Agilent's and other rotating or robotic arm samplers.These precision threaded, heavy wall vials are the best choice for headspace analysis when a 10ml or a 20ml vial is called for. The screw cap eliminates the need for heavy crimping tools and assures that the vials are sealed perfectly every time. Saves time and money and assures a good head space analysis.Available in clear 1st hydrolytic glass, these round bottom vials are perfectly compatible with the leading HS analyzers. Packaged 100 vials per pk.