Laboratory Glass Pear Shaped Flasks 14/20 Joint
Our flasks are heavy wall design, made by hand-blowing to ensure uniform wall thickness, and made of high-quality borosilicate glass G3.3 and annealed at 800 degree Celsius, can be heated directly in an open flame and can withstand typical laboratory thermal variations in Chemistry processes like heating and cooling.
Handle blowing by the glass blowers,not made by the Pouring
If the item will be broken in the delivery process,we will send the replacement to you right now.
Be Made From G3.3 Borosilicate Glass
Annealing Point ------560℃
Linear Coefficient of Expansion------ 32×10-7/℃
Softening Point------820℃