60 and 70 are broken bridge aluminum doors and windows the owners choose the two models most, and their main difference is that the product wall thickness and sealing structure are different.
60 type broken bridge aluminum casement window advantages and features:
60 series broken Bridge aluminum window, wall thickness 1.4mm,6 sealing structure. It is the preferred model for the renovation and redecoration of old windows in the family. 60 series Broken Bridge aluminum doors and windows, cost-effective, suitable for owners who have narrow window sill width and do not increase the height of the table top. The size of a single window is generally small, and the window width is less than 1.2 m.
70 series broken Bridge aluminum casement window advantages and features:
70 series Broken Bridge aluminum window, wall thickness 1.8mm,10 sealing structure. It has become the mainstream choice in Broken Bridge aluminum doors and windows processing. At the beginning of the 70 series, the wall thickness increases to 1.8mm, and the strength increases and becomes stronger. The material and glass area are widened, and three layers can be selected. Hollow glass, more heat insulation and sound insulation.
To sum up, the 70 series is more sealed and stronger, which can be used as the first choice. But if the window opening is small, it is more beautiful to choose 60.