... professionals 52,the companies have one set of 1200-six –roller cold rolling lines,1 set of 1450-six-roller cold rolling ... tons ,18 million tons cold-rolled sheet ,20 million tons non-oriented silicon steel ,15 million tons galvanized sheet ,8 million ... advanced production equipment ,which are engaged in cold-rolled sheet ,non-oriented silicon steel ,high-grade galvanized plate ,color coated enterprises ...