The punch materials of metal stamping dies usually adopt different grades, such as SKD11, D2, DC53, SKH51, ASP tungsten steel, etc. For general stamping materials, we use SKH51 high-speed steel, and the heat treatment must reach HRC62 to 64°. However, when it comes to thick plate stamping materials and relatively hard stainless steel materials, we will upgrade the punch material and apply coating treatment to the working parts to achieve higher hardness and a longer service life. Our quality and price have an absolute advantage in the same industry