Lab Glass Adapter Top 50/42 Bottom 24/40

Made of borosilicate glass

Made by hand blower

Handle blowing by the glass blowers,not made by the Pouring

Be Made From G3.3 Borosilicate Glass

Annealing Point ------560℃

Linear Coefficient of Expansion------ 32×10-7/℃

Softening Point------820℃