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2014-12-15 The necessity of the plates using plate and the flexible pipe of thin tube
2013-03-27 Introduction of downhole throttling process
2013-03-27 Downhole throttling control hydrate mechanism and process.
2013-03-27 Access conditions in construction industry began to implement
2013-03-27 The qualification grade standard of building waterproof engineering contracting enterprises professi
2013-03-27 Wisdom city construction has entered a new stage
2013-03-27 The sixth session of the China real estate Scientific Development Forum
2013-03-27 Freeze plugging technique principle

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