Dongyang Gangchul is the largest aluminum extruding company in Korea having the annual production capability of around 54,000 tons.
Dongyang Gangchul has contributed to promote the comfortable living environment through the production and supplying of aluminum sash first in Korea.

Dongyang Gangchul is main company getting customer's high interests by virtue of the supply system of the "DONGYANG ALU SASH", the Korean 1st brand of aluminum sash based on accumulated aluminum extruding technology over 50 years and "DONGYANG i SASH" to end users through Korean nationwide network of 160 agencies.

The aluminum sash business which had been commenced first in Korea under the high quality of "DONGYANG ALU SASH" expanded the improving campaign of living environments to all construction industry. Dongyang Gangchul is leading the industrial re-organization and variety over wide range from the giant profiles for airplane, shipbuilding, light-weight automotive, and high speed train industry to electronic, tele-communication, electric and other architectural industry.

Dongyang Gangchul has participated the Korean governmental projects for high speed train and light-weight rolling stocks. On the basis of unique capability of 8,000 ton extrusion press and giant profiles upto maximum with of 650mm, Dongyang Gangchul awarded the contracts and supplies the rolling stock materials for Metro Kwangju and Metro Daejeon subway trains and Incheon International Airport Railways. Dongyang Gangchul will play a main role to develop Korean industry through the supply contract for Metro Seoul and Metro Pusan Subway trains.

To help reduce raw material costs, through KPTECH, INC in California, USA, We procure large quantities of 6063, 356 wheel and 6061 Aluminum scrap from outside of Korea.
This ensures Dongyang Gangchul not only the largest extruder in Korea, but also the one with the lowest costs.