Burette stopcocks, borosilicate glass 3.3Stopcock with facetted tip, with solid NS plug, PTFE plug or PTFE spindle, material: borosilicate glass 3.3.
Burette stopcocks, borosilicate glass 3.3Stopcock with facetted tip, with solid NS plug, PTFE plug or PTFE spindle, material: borosilicate glass 3.3.