Ground joint:

14/20 Ground joint

19/22 Ground joint

24/40 Ground joint

29/42 Ground joint

Length for selection

75mm  150mm 250mm

If you need any other size or other Ground joints,please contact with us

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------ 33×10-7/℃

Softening Point------820℃