We have our own furance for production High temperature resistant Adopt platinum molding technology Length: below 3m(1500mm)

We have our own furance for the production of those glass tubes, we can customize the specifications to the customers' demand, and the delivery time will be very short.

Our glass tubes can keep high brightness for longer time than other glass, and looks more transparent due to the borosilicate material.The outer diameter is 4~315mm, wall thickness is 1.0~10mm, and the length is freeAdopt platinum molding technology to produce 3.3 high borosilicate glass,Looking forward to establish business relationship with you!

Specification of glass tube

1.Material: high borosilicate glass 3.3

2. Size: OD 4-315 mm

3.Color: clear

4.Softening point: 820±10°C

5.Transformation temperature:525±15°C

6.Hydrolytic resistance at 90°C: ISO719-HGB1

7.Hydrolytic resistance at 120°C: ISO720-HGA1

8. Acid resistance class: ISO1776-1

9.Alkali resistance class: ISO695-A2

Applications: superior heat resisting products and crafts,Rod suit for

Super quality architectural lamps;tube applicable to chemical instrument,

chemical tube and handicrafts;raw material for vacuum tubes,article of daily necessities.

China high borosilicate glass tubes with difference size