Steel doors and advantages: a: insulation: PVC plastic thermal conductivity of aluminum is only 11250, steel 1400. Plastic doors and windows of the house dissipated energy (either heating or refrigeration and air conditioning), only 26% of energy loss Gangchuang steel doors and how to price, 30% aluminum window dissipated energy. Two: Sound insulation: extruded plastic steel doors and windows using price and processing, double glass vacuum insulation effect is greater than 30 db. Three: anti-aging: at temperatures between minus 30 ℃ to 70 ℃ produced zero on the price of steel doors, steel doors can withstand wind, rain, sun, dry and wet, the color, gloss durable as new. Shijiazhuang gorgeous windows and doors to help you analyze the deformation of steel doors and prevention measures are: (1) PVC window profiles should be used in multi-chamber type, thickness not less than 2. 2mm. Lining plate thickness of not less than 1.2mm. (2) steel window section: casement windows for multi-storey building is not less than 50 series; senior casement not less than 60 series; sash windows do not kid 80 series; sealed plastic window balcony of not less than 85 series. Gorgeous windows and doors, making the price of steel doors and windows, steel doors and prices offered by Baoding gorgeous windows and doors. Search for "Shijiazhuang sun room, bridge aluminum doors and windows, shower room, glass partition" reliable suppliers, network operators choose to have a full alliance Certified: Shijiazhuang Sino-American Door (www.sjzygf.com), trustworthiness and reliability, now "Commercial Union Service" page click on the live chat with us now!