I believe that there are many purchases have encountered the mold punch in the stamping production process is prone to break the head of the

The ring gauge we usually refer to refers to the pass gauge and the stop gauge. It is a gauge used to check whether the

1.SKD11 is a high-carbon and high-chromium cold-working die steel, and SKD61 is a medium-carbon and high-alloy hot-working die steel. 2. The two are used in