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关注：1
2013-05-23 12:21
求翻译：阀碟与阀座套配研是什么意思？ 待解决
 悬赏分：1
- 离问题结束还有
阀碟与阀座套配研
问题补充： |
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2013-05-23 12:21:38
Valve and valve seat disc set with research
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2013-05-23 12:23:18
valves and valve block dish set R&D
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2013-05-23 12:24:58
The valve small dish and the valve seat cover matches grinds
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2013-05-23 12:26:38
Valve disc and seat distribution inquiry
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2013-05-23 12:28:18
Valve disc and seat distribution inquiry
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