5pcs High borosilicate glass tube,O.D. 20mm,Thk. 1.8mm,L. 40mm/60mm200mm/250mm/300mm,High temperature resistant glass tube

5pcs High borosilicate glass tube,O.D. 20mm,Thk. 1.8mm,L. 40mm/60mm200mm/250mm/300mm,High temperature resistant glass tube

Aliexpress UK