The material used for stamping is shaped with various sizes of sheet, strip and block. The size of sheet metal is large, generally used for stamping large parts; for small and medium-sized parts, most of the sheet metal is cut into strips after use. Tape (also known as coil) has a variety of specifications of width, the length of deployment can reach several kilometers, suitable for mass production of automatic feeding, material thickness is very small can also be made into tape supply. The block material is used for stamping only a small number of steel and expensive non-ferrous metals.