Our products include Pharmaceutical neutral glass tube, tubular vial, moulded glass vial, ampoule, rubber stoppers and tear-off caps, Borosilicate clear and colored glass tube and rod, glass cylinder and borofloat glass sheet, and the Lead glass tube, lead free glass tube.

Pharmaceutical neutral glass tube Type I
Manufactured strictly according to international standards
Product Feature
Place of Origin China
Material Glass
Industrial Use Pharmaceutical
Use Liquid Medicine
Sealing Type Rubber Stopper


Product Specification/Models
Pharmaceutical neutral glass tube Type I

Pharmaceutical Clear Glass Tubing COE 7.0


Coefficient of Linear Expansion

α20.300 According to DIN:52328 7.0±0.1×10-6/K


Transformation Temperature: 550


Softening Point: 750


Working Point: 1110


Density ρ 2.46 g/cm3


Hydrolytic Class, according

to ISO 720 1


to European Pharmacopoeia 1


to USP 23 1


Acid Class (DIN 12116) 1


Alkali Class (ISO 695) 2


Chemical Composition


(main composition in Approx. weight %)

SiO2 70

B2O3 6.6

Al2O3 6.2

Na2O 11

BaO