Features: 1. Made by 2 panes of fusing glass spaced by dry air, argon or other inert gases. 2. Excellent efficiency in heat insulation, greatly lessens cooling load, sound -insulated, dustproof, frost-resistant, warm-keeping. 3. Easy to clean and economize energy. 4. It meets GB/T11944-1989 quality level demand. Specification: Size: according to customers' requirements Alumimum Frame thinkness: 6mm, 9mm,12mm 15mm thinkness of glass:3-25mm Applications: glass curtain wall and any other building materials