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by-changing processing position
broken bridge sliding screen
outside strutting is made of 1mm thick galvanized steel
Realizing group control of multiple shutter windows
the Fireproof door of aluminum bifold door made in china on China WDMA color:Multi by-changing processing positionDetailed Images 1. Single and double fire proof sound proof doors 2. Excellent fire resistance and sound insulation 3. Uses: Mainly used in large commercial buildings, entertainment venues, hotels, conference venues and industrial plants, auxiliary buildings, or similar civil and underground construction projects with fire and sound insulation requirements. Sound insulation index la30dB About Us Tianjin Huapeng Weiye Doors & Windows Co., Ltd. is a
