SPCC cold rolled coil commonly known as cold plate. It is made of ordinary carbon hot rolled steel strip, further cold rolled into a thickness of less than 4mm steel plate, which is called SPCC cold rolled coil, also known as the box plate or plate; Long length, roll delivery is called steel belt, also known as roll plate. Due to rolling at normal temperature, no iron oxide is produced, compared with hot rolled coil, SPCC cold rolled coil surface quality, appearance, dimensional accuracy are significantly better than hot rolled coil, and its product thickness right rolled thin to about 0.18mm, so favored by the majority of users, widely used in automobile, household appliances, hardware, aviation, industrial equipment and construction industries.