Our company is a company that produces transparent panels, H-beam post noise barriers, Noise reduction devices, etc. as noise barrier materials(Noise barrier, Tunnel type noise barrier, etc.) In particular, we are recognized for our technological prowess with patents, Excellent Performance Certification(EPC), and innovative products in transparent panels. Among them, Transparent panel with a sound absorption louver that has zero loads by the individual coupling method and can be detachable from the front has the following advantages. ① There is no load transfer of the top plate by individually combining the transparent panels to the post ② No separate rear work is required by integrating fixtures into the transparent panel (easy to install) ③ Front detachable and replacement of the entire transparent panel or only the transparent material is possible (convenient maintenance) ④ The sound absorption function can be supplemented to maximize the noise reduction effect ⑤ It has a function to no reduction load transfer and can be inserted and installed from the front, which is advantageous when installing high noise barriers, tunnel-type noise barriers, bridges, slopes, etc.