Available Ground joint:
14/20 Ground joint
19/22 Ground joint
24/40 Ground joint
29/42 Ground joint
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