●Beijing Huali Hollow Glass Sealing Adhesive Technology has been independently developed and produced for nearly 30 years, innovating and iterating, following the development pace of the building materials industry, responding to the national call for energy conservation, environmental protection, sustainability, and circular economy, constantly breaking through. The hollow glass products made from core products have passed multiple national testing institutions' tests, with excellent measured data such as high airtightness and low thermal conductivity