Bridge with Humans and Nature

Steel/Building materials/Pipe/Synthetic wood manufacturer Seokyoung S-tech Co., Ltd.

Window and door stiffeners are products used to improve the strength of windows or doors by inserting steel material inside the window and door profile. We manufacture various kinds of stiffeners, including common stiffener, system window and door stiffener, and fence stiffener for construction purposes.

The best producer of window and door stiffeners in Korea!!
We have coil center and slitter line at the headquarters in Dangjin and are equipped with cutting-edge facilities and roles. We continuously try to satisfy customers with the best quality.


  • An outstanding partner of LG Hausys Ltd. in 2016
  • A quality management model company of LG Hausys Ltd. in 2017