Product Description

1 A droping the complex design of aluminum plastic aluminum toform the interated structures coefficient of the changed plastic.                                                                   2 Using the middle hollow glass of minimum size add the thickness of airlayer ,which can be increased to *6mm.
3 THEwinda door have doog water tightness and air tightness with adoping three layer sealed structures .
4 Adoping the complex design of aluminum plastic aluminum ,giving attention to advantades of the both materials.