The Premier aluminum vertical bi-fold door folds up and out, requiring no floor track or panel storage on the side of the opening. The lightweight door, made of aluminum tubing, rides a jamb-mounted track and can be operated by push-button. Hufcor provides the frame, drive mechanism, and controls, but leaves the choice of cover material up to the Building Team. The Kolbe Ultra and Heritage Series of windows and doors provides options for more accessible, independent living. With motorized operators, longer crank handles, and oversized lever locks, windows can be easily operated from a seated position. Doors may be ordered with an aluminum sill ramp or flush-to-floor sills for smooth transition from one side to the other. Doors are also available in wide sizes to accommodate passage by people with mobility aids. Kolbe offers window and door units that exceed the suggested energy values for LEED by up to 20%.
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机译：Premier铝制垂直双折门可以向上和向外折叠，无需在开口的侧面安装地板轨道或面板。轻巧的门由铝管制成，可安装在门框上，可通过按钮进行操作。 Hufcor提供了框架，驱动机构和控制装置，但将覆盖材料的选择留给了建筑团队。 Kolbe Ultra and Heritage系列门窗为人们提供了更便捷，更独立生活的选择。使用电动操作员，更长的曲柄手柄和超大的杠杆锁，可以从坐姿轻松地操作窗户。可以订购带有铝制门槛坡道或齐平地板的门槛，以便从一侧平滑过渡到另一侧。还提供各种尺寸的门，以方便行动不便的人通过。 Kolbe提供的门窗单元比LEED的建议能量值高出20％。
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