Cover glasses , round Cover glasses , round, thickness No. 1 (0,13 - 0,17 mm), borosilicat - glass, hydrolytic class 1, exact cutting acc. ISO 8255/1, packed in clear plastic boxes of 100 pcs. and in a carton of 1000 pcs., respectively at 25 mm dial special packaging.   Article Code Description Article Code Description 3800025 05 - 10 mm 3800031 33 mm 3800026 11 - 18 mm 3800032 35 mm 3800027 19 - 22 mm 3800033 40 mm 3800029 23 - 25 mm 3800034 45 mm 3800030 26 - 30 mm 3800035 50 mm