high borosilicate glass tube 

special process/ Ultra long tube up to 5000mm(O.D≤60mm)

good straightness(1mm/1000mm)

Specifications:

OD:4~315 mm / Wall thickness:1~10mm

End:fire polished/cut neat/anneal/ground

Heat/acid/alkali/Hydrolytic resistance

we can customize the specifications to the customers' demand.

Advantages:

1.Our glass tubes can keep high brightness for longer time than other glass, and looks more transparent due to the borosilicate material(high purity sand).

2. The outer diameter is 4~315mm, wall thickness is 1.0~10mm, and the length is free.

3 .We adopt platinum molding technology(very expensive) to produce glass tube.

Borosilicate 3.3 series glass is a kind of special type glass material with the features of low expansion coefficienthigh temperature resistancehigh intensity high rigidity transparncy and chemical stability. It doesn't explode in high temperature, and can be forged and drawn to variety of formation when soften.All these splendid features enable it to be widely used in the field of solar energy,chemical industry, pharmaceutical packaging, electric light source,artificial crystal, artificial craft decoration and so on.Compared with ordinary glass. It's non poisonous, and it has made the big progress in its mechanical property, thermal stability, hydrolytic resistance.acid resistance and alkali resistance glass
Glass tube OD from 4mm~315mm 
Glass rods dia from 3~42mm 
Glass tubes  wall thickness: 1.0mm~10mm