- Drilling Rig[10]
- Other Mining Machinery[3]
- Mining Machinery Parts[10]
- Air-Compressors[10]
- Diesel Generators[10]
- Storage Bottles & Jars[9]
- Jar[1]
- Bottles[10]
- Other Holiday Supplies[1]
- Water Bottles[1]
- Other Metals & Metal Products[10]
- Electrical Wires[1]
- Other Lights & Lighting Products[5]
- Tungsten Wire[3]
- Glass[8]
- Solar Collectors[1]
- Lamp Holders & Lamp Bases[10]
- Lids[10]
- Glass & Crystal Vases[10]
- Refractory[10]
- Other Machinery[1]
- Temperature Instruments[1]
- Industrial Furnace[6]
- Cups & Saucers[10]
- Glass[1]
- Moulds[2]
- Metal Slabs[1]
- Other Mechanical Parts[1]
- Nickel[3]
- Building Glass[10]
- Contact Person : Mr. jia jeff
- Company Name : Beijing Kaixingda Industry Technology Development Co., Ltd.
- Tel : 86-10-67562712
- Fax : 86-10-67562693
- Address : Beijing,beijing,NO.15 MAJIAPU,FENGTAI DISTRICT
- Country/Region : China
- Zip : 100068
factory outlet BROSILICATE glass tube
factory outlet BOROSILICATE glass tube
size: from 3-315mm, and the tubes of 37, 47, 58, 70 for the solar water heater.
the high borosilicate glass tube enjoys good heat-proof, anti-rot, mechanical capacity, high working temperature, good technical quality and the favourable price.
Main composition:1) SiO2: 80±0.5%2) B2O3: 13±0.2%3) Al2O3: 2.4±0.2%4) Na2O(+K2O): 4.3±0.2%
Chemical properties:1) Coefficient of mean linear thermal expansion (20°C/300°C):3.3±0.1 (10-6K-1)2) Transformation temperature: 525±15°C3) Working point: 1,260±20°C4) Softening point: 820±10°C5) Density at 20°C: 2.23g/cm6) Hydrolytic resistance at 98°C: ISO719-HGB17) Hydrolytic resistance at 121°C: ISO720-HGA1
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factory outlet BROSILICATE glass tube
