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所谓的不变形工具钢实际上并不是在硬化状态下绝对地不变形,而是在硬化状态下变形或者畸变都是最小的钢。不变形钢中有许多种列在其它类别
The so-called non-deformable tool steel is not actually in the state of hardening is absolutely not deformed, but in the hardened state deformation or distortion are the smallest steel. There are many types of undeformed steel listed in other categories