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Deschem 24/29,Straight Glass Vaccum Adapter W/hose Connection,Lab PTFE StopcockBorosilicate glass 3.3.Joints is 24/29.PTFE Stopcock
Be Made From G3.3 Borosilicate Glass
Annealing Point ------560℃
Linear Coefficient of Expansion------ 32×10-7/℃
Softening Point------820℃