Dong-A Flexible Metal Tubes Co., Ltd., is a Corrugated Stainless Steel Tube(CSST) manufacturer who has been known world-wide for high technology in metal engineering and top class facility producing world best quality CSST, since its foundation in 1982.
We have obtained total 23 international quality approvals from prominent evaluation facilities/programs including UK ISO9001-2008 Quality Management System, LPCB, UL, FM, VdS, IAPMO, etc. And we've also achieved obtaining 8 domestic quality & technical certifications including Korean Standard (KSD3625, KSD3628).
In addition, Dong-A have developed the state-of-the-art technologies registered for 65 cases of domestic and international patents, and announced 9 academic journal articles to Corrosion Science Society of Korea and The Korea Society of Safety, cooperated with researching institutes and universities. As a global leader in the industry, we always do our best to serve our valuable customers all over the world (including UK, USA, Germany, Poland, Italy, Russia, Australia, Japan etc) with absolutely fine quality products.