DTH drilling tool----DTH hammer,drill pipe,drill pipe joint tooland dth hammer bit etc.
Low pressure DTH hammer range:
2" DTH hammer
CIR65(ZX-60)
3" DTH hammer
CIR90(ZX-90A)(ZX-90)
CIR80(ZX-80)
CIR70(ZX-70)
ZX-70B
4" DTH hammer
CIR110(ZX-110A)(ZX-110)(ZX-100)(ZX-130A)
5" DTH hammer
CIR150(ZX-150)(ZX-150A)
New product:
6" DTH hammer
CIR170(ZX-170A)
3" DTH hammer
CIR90(CL-90A):similar with ZX-90A,one minute quicker for onemeter,more durable.
· Iron valve piece:for medium-soft,medium-hard and hard rock.
· Nylon valve piece:for soft rock or water well.

