... Satisfying the requirement for TDS installation. Rig ModelZJ20DBSZJ30DBSZJ40DBSZJ50DBSZJ70DBSNominal drilling depth, 127mm(5)DP, m 20003000400050007000Max. hook load, kN(t)1350(135)1700 ... to one drilling rig,rig, drilling equipment drill rig,drilling machine ,oil rig,oil equipment, rig equipment, tiger rig,low-temperature rig, land rigdrilling rig,drill rig ,Drilling Rig ( function(){ var ...