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DURAN®, borosilicate glass, with NS-PE stopper.
With socket and plain stem. Available with interchangeable solid glass key or alternatively PTFE key for grease-free performance. Both with or without graduations.
DURAN®, borosilicate glass, with NS-PE stopper.
With socket and plain stem. Available with interchangeable solid glass key or alternatively PTFE key for grease-free performance. Both with or without graduations.