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The choice of drill rod steel is crucial due to the harsh conditions it encounters. It needs to be strong enough to resist bending and breaking under immense pressure, while also being resilient against wear and tear caused by friction and abrasive materials. Typically, drill rod steel is composed of high-carbon alloy steels, often containing elements like manganese, chromium, and nickel to enhance strength, toughness, and resistance to corrosion.

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YT29 drilling emerged as a novel approach to drilling in the early 21st century. The technique is named after its creator, YT29, who developed the method as a means to address the challenges faced in conventional drilling methods, such as limited depth and low productivity. YT29 drilling utilizes a unique combination of mechanical and hydraulic systems to achieve superior drilling performance.

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