Steel doors and windows of our homes commonly used building windows and doors, steel doors and windows in the market accounted for half of the white has been the main colors of plastic doors and windows, but after years of development, steel doors and windows color has become the new hot consumer market. Colorful color coated profile points, the overall color, two-color coextrusion of several production methods and technology, the first two methods by the quality and cost control, development is limited, and the color co-extrusion method is the focus of the study. This method is the same in two different colors or different material extruded as a whole, the formation of a number of methods PM- MA-PVC co-extruded, ASA-PVC and PVC-PVC co-extruded, for businesses and growing market. According to the manufacturer, ASA material is not only resistant to degradation caused by ultraviolet radiation, aging, fading, while atmospheric oxidation and processing temperatures will not cause decomposition or discoloration, test results showed that the anti-aging properties of the ABS of ASA more than 10 times. The increasing number of flat open doors and windows, has accounted for 90% of the total, with energy-saving windows and doors of hardware accessories, hollow glass processing equipment and seals localization speed, promote energy-saving windows and doors to reduce production costs, increase market sales. Windows and doors processing whole accelerated, a few years ago, our foam PVC windows and doors processing is still a blank, and now the launch of such products made in China have been able to once extrusion molding, to achieve domestic production. Not only quickly occupied the domestic market and exported to more than 40 countries around the world. However, in the development of plastic doors and windows, especially steel flat open doors and windows widely loved by consumers, mainly in the cost-effective, has superior features in terms of noise insulation energy efficiency seal. Website: http: //www.zzhxmc.cn/ Zhengzhou factory doors and windows, balconies closed Zhengzhou, Zhengzhou bridge Cailv doors processing installation http://www.zzglygf.com/ Zhengzhou sun room, closed balcony Zhengzhou, Zhengzhou bridge Cailv closed balcony | Price Zhengzhou factory doors and windows, sun room installed in Henan, Henan bridge Cailv doors, closed balcony Zhengzhou, Henan factory doors and windows, installation of windows and doors processing Cailv bridge Zhengzhou, Zhengzhou sun room, Zhengzhou bridge Cailv closed balcony, closed balcony installation Zhengzhou, Zhengzhou bridge closed balcony Cailv price, sun room installed in Henan, Zhengzhou bridge Cailv doors and windows processing, Zhengzhou sun room installed, Henan bridge Cailv doors and windows processing, Zhengzhou sun room processing, Henan off Bridge Cailv windows prices, Zhengzhou doors and windows processing, color aluminum doors and windows broken bridge price Zhengzhou, Zhengzhou closed balcony installation, Henan sun room, sun room prices Henan, Henan sun room installation