HIGH-STRENGTH COLD ROLLED STEEL SHEET HAVING EXCELLENT DUCTILITY, HOT-DIP GALVANIZED STEEL SHEET AND METHOD FOR MANUFACTURING SAME

摘要

The present invention relates to: a high-strength steel sheet used for construction materials and transportation means such as vehicles and trains and, more specifically, to a high-strength cold rolled steel sheet having excellent ductility; a hot-dip galvanized steel sheet; and a method for manufacturing the same.