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New products latest window door design wholesale price aluminium doors and windows on China WDMA

New products latest window door design wholesale price aluminium doors and windows Product Description   Company Information   Packaging & Shipping   Project Case Performance Performance  Themal insulation 3.8≥  U≥2.0 W/m2k 3~6 level   Accusic  performance  28db ~ 40db  2 ~ 4 level   Water tightness  350~600Pa 4~8 level    Air tightness  5.5m3/(m2·h) 5 level    Wind...
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China Windows and Doors Manufacturers Association

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