What is the main composition of the glass?

The main composition includes SiO2 (81%), B2O3 (13%), Na2O+K2O (4%), and Al2O3.

Standard Threaded Joint Quartz Tube / Quartz Glass Tube with Screw Thread

Name: Standard Threaded Joint Quartz Tube / Quartz Glass Tube with Screw Thread
Brand: Shandong Longguang Tianxu Solar Energy Co., Ltd.
SKU: 1929952701

Shandong, ChinaShandong Longguang Tianxu Solar Energy Co., Ltd.

Negotiable

2 Tons

Product profile

Customization

Available

Color

Transparent

Certification

ISO9001

Cup Accessories

without Handle

Application

Daily Use

Type

Glass Tube

Transport Package

Carton

Specification

18-1.8-1500

Trademark

Tianxu& Oem

Origin

China

HS Code

7023

Production Capacity

120450 Tons

Key features

High Borosilicate Glass Material: Healthiest and safest glass for daily use, laboratory, and lighting applications.

Superior Thermal Resistance: High resistance to thermal shock, low expansion rate, and stable performance in adverse conditions.

High Chemical Stability: Resistant to water, strong acids, alkalis, and saline solutions with excellent hydrolytic resistance.

High Light Transmittance: Optical and cosmetic quality with no extra reflection or refraction for lighting applications.

OEM and ODM Services: Full customization support available for brands like Starbucks and Wuliangye.

ISO9001 Certified Quality: Manufactured under strict quality standards ensuring consistent performance and safety.

Fast Lead Time: Peak and off-peak season lead times both within 15 working days.

Company profile

Shandong Longguang Tianxu Solar Energy Co., Ltd.

Shandong, China

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.