新型自扩孔锚杆

Release time:2018-12-06|Hits:

Affilication of Author(s):土建与水利学院

Type of Patent:实用新型

Application Number:201120206149.7

Number of Inventors:2

Service Invention or Not:no

Application Date:2011-06-18

Publication Date:2012-02-08

Authorization Date:2011-06-18