Spm110 Cir110 4inch Dth Hammer Hard Carbide Rock
2018-1-11u2002·u2002SPM 6 inch Low Air Pressure DTH Drill Hammer bit CIR110-110mm is very popular in international well drilling field. It is widely used in international well drilling field. SPM110 DTH Drill Hammer drill holes from 155mm to 220mm. Matched drilling bits:SPM110-110mm,SPM110-115mm,SPM110-120mm.SPM110-125mm.SPM110-130mm.
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