How to distinguish the quality of wire drawing die steel?

The following are commonly used methods to distinguish the quality of wire drawing die steel:

　　1.Fake and inferior steel is easy to fold;

　　2.The surface of fake and inferior steel often appears pitted;

　　3.The surface of fake and inferior steel is prone to cracks;

　　4.Fake and inferior steel is easy to scratch;

　　5.Fake and shoddy steel has no metallic luster;

　　6.The surface of counterfeit and inferior steel is prone to scarring,the reason is:the material of counterfeit and inferior steel is uneven and there are many impurities.

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