钻杆

Moreover, high intensive wire line drill rod promoted by us has been widely applied to the construction site, and the drilling depth in the engineering project conducted by hebei Chengde Fourth Geographical Team has already reached 2010m. Common wire line drill rod SC56S59S75S75AS75B(HWDP)S95S95AYS60YS75 High intensive joint wire line drill rod SC56S59S75S75AS95S95AYS60YS75 Wire line drill rod with a designed hole depth of 2000m CQH(95 series drill rod ) Wire line drill rod with a designed hole depth 2500m CNHCBH(made of domestically high quality alloy steel, and comprehensively processed by our factory special quenching and tempering line of heat treatment) International standard wire line drill rod BQNQHQ Common geographical drill rod with small diameter DZ1.1-78 74.7 standard Φ43Φ50 DZ1.1-78 76.7 standard Φ43Φ54 DZ1.1-84 standard Φ43Φ50Φ60Φ73Φ89