Factory wholesale hotsell thermal break sliding windows and doors

thermal break sliding windows and door with insulated profiles and double glass. The heat conduction coefficient K value of the broken bridge aluminum windows & doors for 3W/m2 · K, compared with ordinary windows & doors, the heat loss is reduced by half, reducing heating costs about 30%, noise reached 30 decibels, water tightness, good air tightness, looks more beautiful, strong and durable, all aspects of performance are up to the standard A1 window.
Factory wholesale hotsell thermal break sliding windows and doors