Last ten years, we have made efforts to deal with condensate effectively that air compressor system produces, and produce drain master series, a reliable and economic condensate discharge device, and Yoosu breaker, processing unit of the condensate contaminated by oil. The air compressor system has been focused on production of compressed air so far. In the 21st century, however, energy and environment of the industry has great influence upon corporate activities so that not only saving of expensive compressed air but also processing of the condensate contaminated by oil shall help solve the problem very much. All of the employees at this company shall do best to develop products to help corporate activities and to satisfy customers in return for their patronage. We produce and sell auto drain trap to drain condensate from the compressor, and oil-water separator that processes contaminated condensate.