double hung windows are a common type of indoor door and window products. They have excellent energy-saving and heat-insulating, dust-proof and noise-reducing, and excellent wind pressure resistance. They have beautiful lines and a wide viewing angle. They will not collide with the human body when opened. The frame and sash are wrapped, so there is no risk of the sash falling outwards. They have excellent safety coefficients and many other advantages. They are widely used in high-rise buildings in North America.
Here are wood color aluminium window for building materials market. And for window is 1.2-1.4 mm, for doors is 1.4-2.0 mm, special profile thickness is available.
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