nice aluminum frameless bifold slide glass door and windows rail on China WDMA Built-in Blinds Anti-acid and alkali corrosion and

Anti-acid and alkali corrosion and free from air pollution

Door Handle:Available

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Mosquito  meshes           Metal and nylon material Seal  Rubber sealing strip

nice aluminum frameless bifold slide glass door and windows rail on China WDMA Built-in Blinds Anti-acid and alkali corrosion andProduct Details Latest system: frameless in vertical and each glass panel can open individually for easy cleaning, more fresh air and sunlight, and close with transparent clear view. Compensation profile: compensation profile at the top can adjust the gap between the window and ceiling to make system horizontal. Adjustment screws: two kinds of adjustment screws, one to raise the compensation profile, another for lower the compensation profile. Rollers