exterior aluminium glass bifold door heavy duty 4m bi folding door on China WDMA on China WDMA color:Light Yellow What types of opening styles

What types of opening styles are available

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Original: Japan/Taiwan

exterior aluminium glass bifold door heavy duty 4m bi folding door on China WDMA on China WDMA color:Light Yellow What types of opening stylesexterior aluminium glass bifold door heavy duty 4m bi folding door Product Description Company Information Packaging & Shipping Project Case Performance Performance Themal insulation 3. 0 U2. 0 W m2k 3~6 level Accusic performance 28db ~ 40db 2 ~ 4 level Water tightness 350~600Pa 4~8 level Air tightness 5. 5m3 (m2h) 5 level Wind load resistance 3. 0~ 4. 0 Kpa 5 ~ 7 level Charcteristics Profile Thickness 1. 2 ~ 3. 0mm Profile Depth Frame 45~155mm Vent