High-quality profiles have uniform dimensions, reasonable internal cavity structure, soft color, smooth protective film, no air bubbles, and wall thickness extensions are generally 2 mm.

According to the purpose,Inner doors, outer doors, fire doors, sound insulation doors, insulation doors, anti-theft doors, insulation windows, sound insulation windows, fire windows, ventilation windows, bright windows, etc.

The bead with the sealing strip must be tightly attached to the glass, there should be no obvious gap between the bead and the profile, and the joint gap should be less than or equal to 1 mm.

The unique material of plastic steel doors and windows makes it have excellent thermal insulation, and the thermal insulation effect is 1250 times better than that of aluminum. Coupled with good airtightness, even though it is 30 or 40 degrees outside in the hot summer, indoors is another world.

Thermal insulation and energy saving: uPVC Profile multi-cavity structure, with good thermal insulation performance, low heat transfer coefficient, only 1/357 of steel, 1/1250 of aluminum, its economic and social benefits are huge .