Various Specifications of Glass Test Tubes

1. The outer diameter of the test tube is 6~50mm and the length is 10~2000mm. Other sizes can also be customized.

2. The normal colour of glass test tube is clear.

3. The glass materials has low borosilicate glass, high borosilicate glass, soda lime glass etc.

4. The bottom of the glass test tube has round bottom and flat bottom two styles.