Down-hole Bit

Posted By jinquanrockdrillingtools -

China
Summary: dth bits pressure diameter ranges 66mm 205mm equip jq hammers shank drawing 76mm
Cop54 Dth Bit

Posted By jinquanrockdrillingtools -

China
Summary: dth bits pressure diameter ranges 66mm 205mm equip jq hammers shank drawing 76mm