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一种盾构渣土改良泡沫剂发泡性能鉴定装置

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Type of Patent:Utility models

State of Patent:Authorized patents

Authorization number:ZL 2013 2 0729115.5

Service Invention or Not:no

Application Date:2013-11-18

Authorization Date:2014-05-28

Application Date:2013-11-18

Authorization Date:2014-05-28