STANDARD PRACTICE FOR ROCK CORE DRILLING AND SAMPLING OF

Screw air compressor oil core standard

Screw air compressor oil core standard

To sum up, the standard for oil content at the outlet of the oil injection screw air compressor usually requires no more than 3ppm. In actual use, this standard should be strictly followed and effective measures should be taken to ensure the purity and safety of compressed air. Welcome! [pdf]

Technical Standard Specification for Rock Drill Maintenance

Technical Standard Specification for Rock Drill Maintenance

API RP 7G-2, also known as the “Recommended Practice for Inspection and Classification of Used Drill Stem Elements,” is a crucial document in the drilling industry. It meticulously outlines the required inspection levels, detailed procedures, and testing methods for used drill stem components. [pdf]

Hard rock hdd drilling

Hard rock hdd drilling

Since 2003, HardRock Infrastructure Services has been taking on the kinds of projects others will not touch. What started with one man, one rig, and a pocketful of credit cards quickly evolved into one of the top providers of horizontal directional drilling (HDD) services in the United States. [pdf]

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