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"QI KEJIN"
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"QI KEJIN"
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Environment-friendly spring steel wire machining device
by
CHEN ZHIQIANG
,
YU QIJIN
,
QI KEJIN
,
JIN YONGBAO
Year of Publication
15.12.2020
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Spring steel wire deformation treatment equipment
by
CHEN ZHIQIANG
,
YU QIJIN
,
QI KEJIN
,
JIN YONGBAO
Year of Publication
15.12.2020
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Spring steel wire machining device for improving fatigue performance of high-strength spring steel wire
by
CHEN ZHIQIANG
,
YU QIJIN
,
QI KEJIN
,
JIN YONGBAO
Year of Publication
01.12.2020
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Spring steel wire quenching device and method adopting deep cooling process
by
CHEN ZHIQIANG
,
YU QIJIN
,
QI KEJIN
,
JIN YONGBAO
Year of Publication
12.11.2019
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Spring steel wire stress relief annealing production system and method
by
CHEN ZHIQIANG
,
YU QIJIN
,
QI KEJIN
,
JIN YONGBAO
Year of Publication
12.11.2019
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Method and device for removing impurities in cyanogen-containing lean solution in smelting industry for removing gold and silver
by
LYU ZHIHAO
,
WANG JIAOJIAO
,
LIANG YAN
,
QI KEJIN
,
LYU HONGTAO
,
CHENG XIANYANG
,
FENG YONGMEI
,
LI YUNFEI
Year of Publication
25.03.2015
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Patent
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Subject Area
chemistry
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medicine
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sciences
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Topic
chemistry
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metallurgy
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general devices for heat treatment of ferrous or non-ferrousmetals or alloys
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making metal malleable by decarburisation, tempering or othertreatments
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metallurgy of iron
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modifying the physical structure of ferrous metals
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Chinese
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esp@cenet
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