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3.3 borosilicate glass tube specification:
1.Structure:All-glass double-tube co-axial structure
2.Glass material:High borosilicate 3.3
3.Diameter and thickness:47mm,1.6mm/58mm&1.6mm
4.Length:1500mm/1800mm/2000mm
5.Absorptive coating material:Al-N/AL or ALN/ALN-SS/CU
6.Life:15 years
glass pipe cheap