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