Copper plates can be classified according to different grades, roughly divided into brass plates, red copper plates, bronze
plates, and cupronickel plates. Copper plates are divided into hot-rolled plates and cold-rolled plates. The thickness of
hot-rolled plates is generally 4~25mm, the thickness of cold-rolled plates is between 0.2mm~15mm, the maximum width is 2500mm, and
the maximum length can reach 6000mm.