Reaction Flask,PTFE Stopcock
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 ------560C
Linear Coefficient of Expansion------ 32×10-7/C
Softening Point------820C