SEOUL, Dec 1 (Reuters) - South Korea's third-largest steelmaker Dongkuk Steel Mill said on Monday it would cut prices of rebar by 11 percent to bring prices of its construction steel in line with that made by a rival. Its local peer Hyundai Steel said on Friday it would cut prices of rebar by 11 percent, its second price cut in a month, due to weakening demand from the construction sector and ...