120-80 broken bridge sliding window

· High strength aluminum alloy, sound insulation and moisturizing, energy saving and environmental protection. 
· The frame splicing uses the open wood set technology, the section before splicing uses the imported waterproof glue, the colloid is fully extruded when the screw is fastened, and the waterproof problem is solved thoroughly. 
· The lower track is embedded stainless steel track, using high-strength track, each opening is very smooth. The whole lower track adopts an integrated inclined drainage structure, which can ensure smooth drainage when the rainfall is too large.