一种压力触发式水下灌注桩标高定位装置及其使用方法

Release time:2018-12-06|Hits:

Disigner of the Invention:yangniqing,zhangqianqing

Type of Patent:发明

Application Number:201510511514.8

Number of Inventors:24

Service Invention or Not:no

Application Date:2015-08-18

Publication Date:2016-11-30

Authorization Date:2015-08-18