prime cold rolled steel coil 1) Steel Grade: GB2520/JIS3303 2) ... Steel Co., Ltd mainly produce tinplate , cold rolled steel coil/plate , The engineering was founded in August 2011 ... China region. Products include: tinplate, deep drawing cold rolled coil, building material panels, appliance panels, the orientation, ... Capacity: about 300,000 tons per year for coil and sheet products.2) Standard: GB/T 2520 ...