China Tunnel Rock Drilling Machine Parameters

Compared with the drill and blast method, TBM tunnelling has significant advantages with high construction efficiency, low project cost, conducive to environmental protection, favorable stability contr. [pdf]

Rock drill drilling reinforced concrete

Drilling precise holes in reinforced concrete, bricks, or standard concrete demands specialized equipment. Thus, a diamond core drill is the ideal tool for these challenging jobs. Here's a clear, step-by-step guide on achieving perfect holes every time using diamond core drill bits. [pdf]

Chinese brand down-the-hole drill factory address

Jiucaiyuan road, Furong District, Changsha, Hunan,China Worktime: 9:00-6:00 (Beijing time) Business Phone : 86-731-85551632 (Working time) 86-731-85551632 (Nonworking time) FAX : 86-731-85551635 Email : [email protected] View More >> [pdf]