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https://cofeseg.com/wp-content/uploads/2020/07/Foto_1000x1000_Tubo_Licensed_AdobeSk.jpg10001000Increase Down The Hole drilling performance with quality DTH pipes. For vertical and horizontal drilling work. Drilling tubes made of high quality steel and with an innovative tempering process. Increases resistance to traction and percussion, achieving great efficiency and durability. Standard measurements and special measurements RD40, RD50 and API threads Diameters between 56 mm to 82 mm and lengths from 800 mm to 1500 mm. We manufacture special measures adapted to the client's needs. Permanent stock in standard measurements.