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SANYOU DIAMOND

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Series of Drilling-With-Casing Bits

跟管鉆頭又稱“手套管鉆頭”、“套靴管”，應用于破碎、溶洞發育的復雜地層鉆進。

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heel bit Φ91/78.5

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heel bitΦ95.5/78.5

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heel bitΦ171/152

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heel bitΦ150/134

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heel bitΦ131/114

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heel bitΦ95.5/78.5

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heel bitΦ111/97

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