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Home / Unidrill 417-3*15.5 interlocking kelly bar with BG30 drill rig

Unidrill 417-3*15.5 interlocking kelly bar with BG30 drill rig

Unidrill 417-3*15.5 interlocking kelly bar works with BG30 drill rig. Their top quality, high work efficiency and perfect after-sales service have win high praise from our customers both at home and abroad.

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