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High Quality Clear High Borosilicate 3.3 Glass Tube
Negotiable
2 Tons
Product profile
Customization
AvailableColor
TransparentCertification
ISO9001Cup Accessories
without HandleApplication
Daily UseType
Glass TubeTransport Package
CartonSpecification
18-1.8-1500Trademark
Tianxu& OemOrigin
ChinaHS Code
7023Production Capacity
120450 TonsKey features
High Borosilicate 3.3 Material: Ensures health safety, thermal shock resistance, and chemical stability for daily and lab use.
Wide Size Range: Diameter from 9mm to 160mm with wall thickness options from 1mm to 5mm.
Customizable Sizes: Sizes between DN80 and 320mm can be customized to meet specific project needs.
Low Thermal Expansion: Coefficient of linear thermal expansion is 3.3+/-0.1 10-6K-1 for stability.
High Chemical Stability: Resistant to water, strong acids, alkalis, and saline solutions with ISO hydrolytic resistance.
High Light Transmittance: Superior optical quality with no extra reflection, ideal for lighting applications.
OEM and ODM Services: Full customization support available for manufacturing and design requirements.
Company profile

CertifiedBusiness Type: Manufacturer/Factory & Trading Company CertifiedR&D Capacity: ODM Service Available & OEM Service AvailableExport Year: 2003-09-01 CertifiedNearest Port: Qingdao PortAverage Response Time: >24h CertifiedTerms of Payment: LC, T/T, D/P, etc.
AI-Powered supplier vetting
SummaryShandong Longguang Tianxu Solar Energy Co., Ltd. is a China-based limited company established in 2002, with 406 employees and a large manufacturing site in Shandong. The supplier develops and manufactures solar water heaters, solar vacuum tubes, high-borosilicate glass tubes, heat pumps, photovoltaic products, and energy-storage systems. Evidence indicates substantial production infrastructure, including more than 10 production lines, 10 electric furnaces, 70 solar vacuum tube lines, and 3 solar water heater lines. It reports ISO9001:2015 and ISO14001:2015 certification, 72 R&D engineers, 50 quality-control staff, and cooperation involving Tsinghua-related organizations. Export activity is significant, with 71%–90% of sales reportedly from exports and markets including Southeast Asia and the Middle East. However, the provided information does not substantiate after-sales processes, customer case studies, customized manufacturing procedures, or financial reliability.
Supplier typeThe supplier is identified as a limited company based in Zhucheng, Weifang, Shandong, China, while one record categorizes it as a trade company. Its described activities and product range show substantial manufacturing involvement in solar thermal, glass, heat-pump, photovoltaic, and energy-storage products.
CertificationsThe supplier reports ISO9001:2015 and ISO14001:2015 certificates, along with other unspecified certifications. These explicitly support quality-management and environmental-management system credentials, although the unspecified certifications cannot be assessed further.
R&D capabilityThe supplier reports 72 R&D engineers, involvement with Beijing Tsinghua Industrial Development Institute and Beijing Tsinghua Solar Co., Ltd., advanced solar vacuum tube production lines, and work across solar heating, cooling, desalination, heat pumps, and photovoltaic systems. It also states that it drafted a national standard for 3.3 high-borosilicate glass, providing explicit evidence of R&D and technical-development capability.
Production capacityProduction capacity is supported by 406 employees, a 133,340 m² manufacturing plant, more than 10 production lines, 10 electric furnaces, 70 solar vacuum tube lines, and 3 solar water heater lines. The supplier also reports annual production of one million tons of high-borosilicate glass and 16 million solar vacuum tubes, plus lead times within 15 workdays in both off-peak and peak seasons.
Product Q&A
Q:What is the material of the glass tube?
A:
The tubes are made of High Borosilicate 3.3 glass, known for safety and durability.
Q:What are the available diameter and thickness ranges?
A:
Diameter ranges from 9mm to 160mm, and wall thickness ranges from 1mm to 5mm.
Q:Can the tube sizes be customized?
A:
Yes, sizes between DN80 and 320mm can be customized according to requirements.
Q:Is the glass suitable for laboratory use?
A:
Yes, it is highly resistant to thermal shock, heat, water, acids, alkalis, and saline solutions.
Q:Does the product support OEM and ODM services?
A:
Yes, both OEM and ODM services are available for this product.
Send Inquiry
*To:
Shandong Longguang Tianxu Solar Energy Co., Ltd.
Shandong Longguang Tianxu Solar Energy Co., Ltd.*Content:
Supplier replies will be sent to your registered email
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