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| Bolai German Style All-Wood Windows & Doors |
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German style all-wood windows & doors inherit Germans’ concepts and genres in decoration; they are leading the way in homeliving fashion and have made the choice of a large populace due to their natural materials, high performance and decent appearance.
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Features：
Bolai European style windows and doors take up primarily German decorating and designing styles and adopt the German IV68 Series. The profiles are parallel-to-grain laminated wood which is highly pressure- and fold-resistant. In addition, we use German outdoor specific painting for the excellent ablility of anti-shaping and -aging. Insulating glass, the dual-seal technique and European pressure hardwares are used, comparing with contemporarily popular regular windows and doors, it is better from the aesthetics standpoint, more effective in heat/soundproof, and even more energy saving with wood being an unconductive mat |
Performances：
Structures：Natural laminated conifer lumbers, high quality German hardwares, high performance 22 mm insulating glass, and complies with German standards.
Performances：Test Results of Beijing Hardware and Plumbing Equipment Quality Supervision and Test Center:
| Wind resistant performance (Pa) |
GB7 |
| Air permeate performance (㎡/m.h) |
GB6 |
| Rain permeate performance (Pa) |
GB5 |
| Sound insulation performance (dB) |
GB6 |
Heat preservation performance (W/m2.k) |
GB6 |
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Applications：
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