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nhi headlines

huai nan mining group deliver a glad message to nhi time:2015-04-23
the world first vertical shaft coal mine rock roadway whole section tbm test successfully
the first exported to singapore tbm of nhi passed the factory acceptance time:2015-04-14
nhi signed strategic cooperation agreement with conch time:2015-04-14
new record of drifting footage of full face & high efficiency tunnel boring machine time:2015-04-07
sales department signed the contract of medium and heavy plate shearing equipment with shagang group time:2015-04-07
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