Thermally Broken Aluminum Lift Turn the Handle Slide Stackable Door   Lifting sliding doors are mainly used in large, heavy sliding doors, The lifting sliding door is composed of aluminum frame and a door leaf, and its hardware accessories are mainly composed of a handle, a transmission, and rollers.   when we lift turn the handle, the whole door lifts off the ground so all the weather stripping and everything is released and it slides open. The only difference with the ordinary sliding door is the hardware used by the lifting system, such as the use of lifting handle, transmission, connecting rod, these are not needed for the ordinary sliding door. It is a lever principle. After the lifting handle ,the roller is lifted.At this time, the sliding door can no longer be moved, which enhances the safety and prolongs the service life of the roller. Lifting the sliding door is more magnificent than the ordinary sliding door.     Performance Parameter Performance EU-STD GB/T7106 GB/T8484 Air Tightness Class4 Class8 Water Tightness E1500 Class6 Wind Resistance C5 Class9 Insulating Properties K 1.45W/㎡·K Class8 Sound Insulation Rw=dB39 Glazing 5+12A+5+12A+5 Our  Certification: Performance Parameter Performance EU-STD GB/T7106 GB/T8484 Air Tightness Class4 Class8 Water Tightness E1500 Class6 Wind Resistance C5 Class9 Insulating Properties K 1.45W/㎡·K Class8 Sound Insulation Rw=dB39 Glazing 5+12A+5+12A+5