Qhia KJ421 Hydraulic Tunnel Boring Rig - qhov kev daws teeb meem zoo tshaj plaws rau tag nrho koj qhov kev xav tau tho txawv.Lub tshuab drilling loj no tshwj xeeb tsim los ua kom tau raws li qhov sib txawv ntawm qhov sib txawv, nrog rau qhov sib txawv ntawm 16-68 square meters.Lub drilling rig muaj peev xwm ua tau zoo heev, tuaj yeem xyaum qhov tawg thiab bolts nyob rau hauv ntsug, inclined thiab kab rov tav txoj hauj lwm, thiab yog ib tug indispensable cuab tam rau kev tsim kho qhov.