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85mm High Efficiency Wear Resistance PDC convave carbide Rock Drilling Three

Jinzhou City Shitan Machinery Equipment CO. LTD.
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85mm High Efficiency Wear Resistance PDC convave carbide Rock Drilling Three

85mm High Efficiency Wear Resistance PDC convave carbide Rock Drilling Three

85mm High Efficiency Wear Resistance PDC Concave Carbide Rock Drilling Three Wing Drag Bits For Well Drilling Product description PDC concave drill bit is composed of PDC cutters and matrix body. With ...

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