Mining blasthole drilling drill pipe 6 1/2*30”ST52 pin*box beco4 match DM45

Mining blasthole drilling top sub 8 5/8’pin 6 5/8”Api *box beco6 match pv275

Mining blasthole drilling top sub8 5/8” pin*box beco6 match pv275

Mining blasthole drilling drill pipe 8 5/8*35”ST52 pin*box beco6 match pv275

Mining blasthole drilling drilling bit sub 40” pin*box beco6 HF match pv275

Mining blasthole drilling top sub 6 1/2*10pin *box beco match DM45

Mining blasthole drilling drill pipe 6 1/2*28”ST52 pin*box beco4 match DM45

Mining blasthole drilling drill pipe 6 1/2*30”ST52 pin*box beco4 match DM45

Mining blasthole drilling drilling bit sub 6 1/2*40” pin*box beco4 match DM45

Tianjin huachang xingye technology co ltd info@tjdrilling.com