Screw-type air compressor structure of a unique design, a compact, stylish appearance, high efficiency, small energy consumption, low noise characteristics and long life, is a smart environment-friendly pro. [pdf]
Whether you want to drill small holes in brass or make large holes, some variables guarantee a successful machining process. The best part – this guide explores all details of successful brass drilling.. [pdf]
DTH technique was used in well drilling exclusively to dig, accurate, vertical bores, and rotary drilling was used to turn the hole. The Directional DTH system, patented by Atlas Copco, was first used. [pdf]
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