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We always use raw material 42CrMo4 to produce the popular press brake tooling and all the tooling are hardened and ground to reach the hardness of 48~52 HRC (Rockwell hardness), the procedure for holistic heat treatment is as follow : quenching + tempering + 860 °C Oil quenching + 390°C Tempering . At last ,the tolerance of tooling we can control is +/-0.02mm Range: we can manufacture Acute toolin...
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