Tunnel Name: Feng ya highway tunneling.
Location: Yunnan province China 
Duration: 14 month
Supply: Shank adapter Cop1838, button bits R32-45mm, drifter rod R32-H35-T38

 Feng ya highway tunneling located in Yunnan province China,fault fracture zone in respect of surrounding rock and distribution, tunneling is large difficult. Construction Company using atlas Boomer E3 equipped with Atlas COP1838 rock drill ensures the quality of construction.

Whole highway construction period is three years; the most difficult is tunneling project, advanced equipments Boomer E3 and Rang 500 drill rigs to improve the effect of the tunnel construction, guarantee could finish construction in specific period.

Since 2010, MEC continually produce quality rock drilling accessories R32-45mm bits, drifter rod R32-H35-T38 and shank adapter Cop 1838.