... 喷雾淬火spraying hardening 高频表面淬火high frequency case hardening 火焰加热表面淬火flame case hardening ...
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...requency straight seam welded pipe-------> 高频直缝焊接钢管 high-frequency surface hardening-------> 高频表面淬火 high-frequency susceptibility-------> 高频磁化率 ..
基于40个网页-相关网页
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