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20mm顶空取样瓶铝盖含垫片20mmHeasspaceVialsCrimpwithPrefittedSepta
20mm顶空取样瓶垫片HeasspaceVialsSepta
13-425中孔螺盖用垫片Septafor13-425ScrewCaps
8-425中孔螺盖用垫片Septafor8-425ScrewCaps
10-425中孔螺盖用垫片Septafor10-425ScrewCaps
螺盖用垫片PTFE/矽胶SeptaforScrewCaps,PTFE/Silicone