AmazonMade From Borosilicate Glass 3.3 Annealing Point ------560℃ Linear Coefficient of Expansion------ 32×10-7/℃ Softening Point------820℃ Deschem Science Supply
Made From Borosilicate Glass 3.3 Annealing Point ------560℃ Linear Coefficient of Expansion------ 32×10-7/℃ Softening Point------820℃ Deschem Science Supply