18mm headspace gas chromatography with silicone septa 2021 - 10 - 25 Aijiren Borosili 3.3 18mm Screw Thread Gas chromatography Headspace Vials PAL system autosampler vial VA1035 price, US $ 8.12 - 10 / Pack, 3 years, Laboratory Bottle, GS, ISO9001.Source from Zhejiang Aijiren Technology Inc. on Alibaba.com.