Ramada doors _ [function] _ invisible screens invisible screens provided by the gorgeous windows and doors. We are Shijiazhuang gorgeous Door (www.sjzygf.com) here: specializing in Shijiazhuang, Hebei: Shijiazhuang sun room, bridge aluminum doors and windows, shower room, glass partitions invisible screens are automatically rewind gauze screens. Ventilation is mainly used for mosquito control. Framework is tightly attached to the window frame, use the time to pull down invisible screens gauze, gauze when not automatically rewinds to the network box. What is less space invisible screens, and strong seal. Coordinated with high-end home decoration. Reel works: through the gauze roll collection. Open: manual, electric, chain beads. Opening direction: vertical, horizontal can be. Folding works: (like an accordion) collection through gauze gauze folds. Select invisible screens must know some knowledge: a buy invisible screens to look at profiles, and now the market is divided into two kinds of aluminum and steel products. The main market is the engineering steel profiles. Aluminum profiles and home improvement market is divided into two aspects of engineering functions invisible screens, screens project life of about 2 years warranty invisible screens play what role, home improvement screens warranty period will be longer. Suggestion: When owners look at the election enough yarn strength aluminum alloy doors and windows, because there is a big difference between the thickness profiles. The difference between the two bearings: bearings are divided into domestic and imported bearings bearings. Recommendation: Because many of Beijing sandstorm weather, domestic bearings are open bearings, if the poor into the dust of the operation will be best to buy imported closed silent bearing.