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Classification by application

Product name

Rollers-Replaceable

IADC537:Suitable for weathered granite, limestone,iron ore and dolomite with stringers.</br>
IADC637:Suitable for Hard shale, limestone, sandstone, dolomite, gneiss, conglomerate,etc.</br>
IADC737:Suitable for Tight granite, quartzite, basalt,hard limestone, siliceous schist, cobblestone, etc.
Product name

Rollers-Replaceable

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ranking

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