Plastic steel doors and windows are a new generation of doors and windows material, because of its advantages of high wind pressure strength, airtight watertightness, low air, rainwater infiltration, low heat transfer coefficient, heat preservation, energy saving, sound insulation, and aging resistance, etc. Four generations of new building doors and windows. Buy plastic doors and windows considerations 1. Do not buy cheap steel doors and windows. 2. Pay attention to glass and hardware. The glass should be smooth and dry. The glass and plastic profiles are not in direct contact and there is a sealing bead that closes the gap. The hardware is complete, the position is correct, the installation is firm, and the use is flexible. 3. The surface of doors and windows should be smooth and flat, without open welding breaks. 4. The sealing strip should be flat, without curling, no groove removal, and no odor. When the doors and windows are closed, there is no gap between the fan and the frame. 5. All four doors and windows are integrated and screwless. 6. Sliding doors and windows open and slide freely, the sound is soft, no dust off. 7. Special steel linings are embedded in the window frames and fan profiles. 8. The glass should be flat and securely installed. The installed glass does not directly contact the profile. Glass glue cannot be used. If it is a double glass flat layer, there should be no dust and moisture in the interlayer. 9. The switch part is closed tightly and the switch is flexible. 10. Plastic steel doors and windows are processed in the factory workshop with professional equipment and cannot be produced on the construction site. In addition, when purchasing, it is best to use brand-name materials produced by well-known companies, choose a construction team with high professional qualities, a formal construction unit or dealer with a certain scale to install, although the price is slightly higher, but the quality is guaranteed. Doors Doors & Windows Doors & Windows Doors Glass Windows Doors Glass Sliding Doors Concealed Shower Set,Concealed Shower Mixer Set,Concealed Mixer Shower Set,Fitting A Concealed Shower Kaiping Rainparty Sanitary Ware Technology Co.,Ltd. , https://www.helin-shower.com