2022年10月21日 · 1-4mL Autosampler Vials for HPLC, UPLC, GC 16mm, 25mm Test Tubes for Water Analysis 6-20mL GC Headspace Vials Caps/Septa, Crimp, headspace, 18 mm, Silver, Magnetic, PTFE/Silicone Septa, 100/pk. Cap Size: 18 mm: Amazon.com: Industrial ...