Included all the items in the picture
1. Be made of G3.3 borosilicate glass.
This borosilicate glass with low linear coefficient of expansion is ideal choice for fabricating laboratory glassware.
Annealing Point: 560℃
Linear Coefficient of Expansion: 32×10-7/℃
Softening Point: 820℃
2. The thickness of the flask wall is 2.5mm.
3. All of the joint is 24/29,This kit has 18 kinds of parts as below:
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1 review for 29Pcs 24/29 Joint Laboratory Glassware Kit Set 25/50/100/250/500mL Quartz Glass Flask Chemistry Lab Volumetric Flask