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Stopcocks, with PTFE plug, borosilicate glass 3.3
Stopcocks, with PTFE plug, borosilicate glass 3.3
Stopcocks, with PTFE plug, borosilicate glass 3.3
Stopcocks, with PTFE plug, borosilicate glass 3.3
Stopcocks, with PTFE plug, borosilicate glass 3.3
Stopcocks, with PTFE plug, borosilicate glass 3.3
Stopcocks, with PTFE plug, borosilicate glass 3.3
Stopcocks, with PTFE plug, borosilicate glass 3.3
Stopcocks, with PTFE plug, borosilicate glass 3.3