What material is better for balcony sealing?

It is best to use thick Mn-Mg-Al alloy profiles for balcony sealing. You can also use plastic steel windows, solid wood windows and so on. Mg-Mn alloy has excellent weldability and corrosion resistance, and has no tendency of stress corrosion. The mechanical properties are not high, and the strength limit reaches 2 10 ~ 280 MPa. Melting the ingot, and pressing to obtain the product. MB 1 is often made into plates, bars, strips and forgings, which are used as aviation parts with low stress but high plasticity, weldability and candle resistance. Plastic steel window is a window type actively promoted by the state in the mid-1990s after wooden window, iron window and aluminum alloy window. Because of its low price and good performance-price ratio, it is still widely used at present. The frame of this window is made of polyvinyl chloride (PVC) resin as the main raw material, with a certain proportion of stabilizer, colorant, filler, ultraviolet absorber and so on. And extruded into profiles; It is one of the most commonly used windows in modern architecture.