Name: Liaoning Super Group Construction Group Co., Ltd.
Super group hardware accessories store：
Doors and windows, stretch bending and pressboard workshop：
Address: middle section of South outer ring of Dashiqiao
Plastic steel doors and windows are multi-cavity structure with good thermal insulation performance. The thermal conductivity of aluminum doors and windows is very small, only 1/357 of steel and 1/250 of aluminum. It is obvious that plastic doors and windows have remarkable thermal insulation and insulation effect, especially for modern buildings with heating and air conditioning equipment. Relevant departments to investigate and compare this, namely: the use of plastic steel doors and windows than the use of wood doors and windows in winter indoor temperature can be 4-5 degrees higher; the use of double-glazing in northern areas is better. According to the Institute of Physics, the heat transfer coefficient of single glass steel and aluminum window is 64W/M2K; the heat transfer coefficient of single glass plastic steel window is about 47W/M2K; the heat transfer coefficient of ordinary double-glazed steel and aluminum window is about 3. The heat transfer coefficient of the double glass plastic steel window is about 7W/M2K, about 2. 5W/M2K. Doors and windows account for 30% of the building envelope area and 49% of its heat dissipation. Therefore, plastic steel windows have very good energy-saving benefits.