They are a manufacturer of automotive steel sheet products and various steel pipes .
Hyundai Hysco , or HYSCO is a steel company of Hyundai Motor Group , established in 1975 , and headquartered in Ulsan , South Korea .
Hyundai Hysco are a HYSCO of automotive steel sheet products and various steel pipes .
Hyundai Hysco , or HYSCO is a steel company of Hyundai Motor Group , established in 1975 , and headquartered in Ulsan , South Korea .