The age of globalization “No company can survive in limitless competition environment without satisfying customer”, developing new technology and world market is the only way of elevator switch and component industry from now on. Since 1982, the year of foundation of company, we Dong-in industrial have taken advantage in cutting edge elevator switch and component technology through researching and developing new technology continuously and are equipped with the various test equipment and test facility in order to provide the best product with high quality, lowest cost with a sense of technological industry`s duty. As a leader in elevator component, we are taking our responsibility for developing technology. With a new idea, strong will and faith in achieving the purpose, DONG-IN Industrial will show the vision of super company leading 21 century.