Products/Services We Offer: |
: new type coal drill rod applied to weak rock drilling; high efficiency spiral drill rod applied to anti-explosion within the scope of 100meters; light type gas-discharging drill rod; geological drill rod adopting the craft of friction welding with alloy-steel pipe; Geological spiral drill rod and prismatic drill rod applied to soft coal seam; small diameter anchor rod and horizontal anchor rod applied to roadway support. |