It has wide application rage from common material treatment to process hardened steel.
可由一般为处理材料一直加工到淬火钢，适用范围广。
The trunnion journal (22) is made by cutting hardened steel with using no cutting fluid.
该耳轴轴颈（22）通过淬火钢的干式切削形成。
They are made of carbon chromium steel and are hardened and ground.
这些内圈是碳铬钢制造的，并经过淬硬和研磨。
淬硬工具钢。
淬硬工具钢。
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