Purpose: The instrument is newly designed device for large borehole diameter determination. It has been widely used for large borehole diameter determination in hydrology, railway, and bridge....
Chongqing Gold Machanical & Electrical Equipment Co., Ltd is a high-tech enterprise for researching, designing, developing and producing oil treatment equipment. With its continuous drawing of....
Purpose: The instrument is mainly used for borehole determination in mining, hydrology, borehole of concrete pile detection. It uses a motor to pull cable. Technical parameters 1. If use three cores....