Detailed Product Description

Our company main produces series of borosilicate glass product in various colors ,rods and tubes in different sizes. The main features of our product is that it has the minimum expansion coefficient(a=3.3×10-6),stable resistance to heat and cold, good  performance against the sudden temperature change(270),fine chemical stability(the water and alkali resistance reach the Grade A).This product has excellent property for making lamp ornaments and is noted by its amide coloring, ant explosion  and ant explosion. The products we are making are widely used for making various light decorations, utensils, ornaments and top-grade crafts.
Now the sales network in China is taking shape, meanwhile some items are stepping into the international market.

Detailed Product Description
1)Regular stocked rod diameter:7-36mm
2)Regular stocked rod length:1,200mm
3)Customized sizes are available(outside diameter:7-46mm)
4)Main composition:
a)Sio280±0.5%
b)B2O313±0.2%
c)Al2O32.4±0.2%
d)Na2O+K2O4.3±0.2%
6)Chemical properties:
a)Coefficient of mean  thermal expansion (20/300):3.3±0.1(10-6K-1)
b)Transformation temperature:525±15
c)Working point1.260±20
d)Softening point820±10
e)Density at 202.23g/cm2
f)Hydrolytic resistance at 98ISO719-HGB1
g)Hydrolytic resistance at 121ISO720-HGA1
h)Acid resistance classISO1776-1
i)Alkali resistance classISO695-A2