Energy-saving insulation:
UPVC profile multi-chamber structure, good thermal insulation properties, low heat transfer coefficient, the steel is only 1/357, 1/1250 aluminum, which is a huge economic and social benefits.
Upvc profile thermal conductivity far less than the type of aluminum, the other multi-cavity structure design is to achieve the effect of thermal insulation. Research shows that in the same type of summer, the indoor temperature of the room with plastic-steel windows and doors is 5-7 ℃ lower than the room with aluminum doors and windows, and 8-15 ℃ higher in different areas in winter.