So far a short-term treatment has been focused on the repair and maintenance of road(asphalt and concrete), bridge and structure due to the lack of comprehensive and systematic methods in carrying out those works. Our company, Roadseal has been not only contributing to the national economy by developing the most appropriate material of Roadseal sealant with a clear understanding on current statue of foreign countries under the support of the government during several years but manufacturing the environment-friendly products by recycling industrial wastes (waste tires, waste styrofoam and stone powder). We have five affiliated companies and 25 branches in Korea and overseas office in Canada, China and Cambodia. We are mainly doing construction, engineering and making chemical products for 40 years. We pledge to observe laws and regulations and give full consideration to environmental preservation and safety.