RC40 RC45 RC50 RC Hammer RC DRILLING BIT
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...large-diameter boreholes. Here's a breakdown: RC40, RC45, RC50: Meaning: Casing diameters (in millimeters). Function: These specify the outer diameter of the temporary steel casing used to line the borehole and prevent collapse. Sizes: RC40 = ~40mm, RC45 =...
ROSCHEN GROUP
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