MONIFLEX as a noise insulation material consisting of fibers (the same material and paper) made more than 60 years of history. For over 60 years, MONIFLEX has been continuously improved, especially in terms of flame. MONIFLEX its good heat insulation, sound insulation and fire-retardant properties, as early as the 1930s had become the railway passenger cars and trams manufacturer's choice. Its unique corrugated structure so that the temperature difference caused by the water droplets can be exported smoothly, without adhering to the body. Together with its own light weight, making it possible to train the weight control, but also contributed to its widespread use in high-speed trains. In addition, MONIFLEX installation operation is simple, recyclable, from an environmental perspective and use of natural resources, it is the most affordable of cold material.