Under the slogan that “let’s the best with challenge and endeavor”, SEO-HEUNG MCO has maintained the continuous development and field experience specializing in manufacturing the customizing special valves combined with new technology and maintenance of valves. Based on valve-specialized experience for 40 years, we have focused on the various energy facilities such as nuclear power plant, thermal power plant, etc., and all employees are producing the customizing special valves focusing on the development of new product with the employees’ service attitude listening to even the smallest voice of the customers and all employees as researchers. SEO-HEUNG MCO will try to do our best for the good on-site service to our customers with even a single drop of sweat from our executives and employees so that we can counteract the innovative green energy industry in the future. Thank you again for visiting our homepage, and we promise a ceaseless challenge to be the Number One in the customizing special valves production and valve maintenance.