2022-12-26
The Micangshan Tunnel is currently using a full set of drilling tools from HZJX and rock drill accessories. Xintong three-arm jumbo (DW3-180) and XCMG iron-mounted three-arm jumbo (TZ3A) have been used before and after this construction site. Several domestic companies have been used in the early stage of the construction site. The products of the brazing tool manufacturers were used for comparative testing. After testing, we finally won the trust of the construction site leaders with the highest cost performance, the most stable quality, and the most guaranteed after-sales service.
