Opening the plate is to cut steel plates of different specifications after the coil passes through the plate of the plate rolling machine.

There are cold-rolled coils and hot-rolled coils, so Kaiping plate is not necessarily hot-rolled plate.

Cold rolling has higher precision, thinner size and better surface quality than hot rolling.

Of course, the thinner the steel plate, the more expensive it is. Similarly, rolling 1 mm steel and 10mm steel is time-consuming and laborious.