Window and Door Profile has the advantages of high air pressure and compression strength, good sealing and tightness, small infiltration of gas and precipitation, low thermal conductivity, thermal insulation, environmental protection and energy saving, sound insulation, noise reduction, thermal insulation, and resistance to embrittlement. It has quickly replaced plastic steel doors and windows, aluminum alloy doors and windows.

The high-quality profile has uniform size, reasonable internal cavity structure, soft color, smooth protective film, no bubbles, and the wall thickness of the extension part is generally 2mm;