QHTT

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

Web Definition

1.
沱沱河
产品展示 ... QHTR( 同仁) QHTT( 沱沱河) QHYS( 玉树) ...
neiscn.org|Based on 6 pages
2.
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。
blog.sina.com.cn|Based on 2 pages