1.Blank

Without  pressing, mostly only used for raw materials which stampinged only once. Sometimes called the blank as wool.

2.Coil Material

Coil material can be used in a  volume of raw materials which stampinged many times.

3.Sheet Metal

Sheet metal can be used in the plate raw materials which stampinged many times.

4.Bar Stock

Material can be used in the strip raw material which stampinged many times.