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Products > force spring > Hebei KongRui Machinery Equipment Co.,Ltd | Similar Products
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force spring

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Interlocking Kelly Bar

Interlocking Kelly Bar
Kelly bar InfoUsually full lock kelly bar is composed of three weld-on ribs continuous concave and convex keys. It especillay for hard ground and frozen oil formation layer.When drilling process, the ...

Full Lock Kelly Bar

Full Lock Kelly Bar
force uniform, not easy to stick pipe, particular to improve work efficiency. Application IMT / Mait or modified small drilling rig. Materials & Technology 1st-2nd pipe Materials: 27SiMn or 35CrMo ...
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