QHTT

  • 网络沱沱河;调质(quenching and high temperature tempering)

QHTTQHTT

QHTT

沱沱河

产品展示 ... QHTR( 同仁) QHTT( 沱沱河) QHYS( 玉树) ...

调质(quenching and high temperature tempering)

...T),淬火加回火(Q&T),正火加回火(N&T),调质(QHTT)等。

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