'drill rod extension for mine exploration.'

One of the key components of rock drill tools is the drill bit, which is the cutting tool that makes contact with the rock surface. Drill bits come in a variety of shapes and sizes, each designed for specific types of rock formations. For harder rock, carbide-tipped drill bits are commonly used, while softer rock may require diamond bits for effective drilling. The choice of drill bit depends on the type of rock being drilled and the required precision of the tunnel.

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On the other hand, FRP, also known as Glass Reinforced Plastic, is a composite material made by combining a polymer matrix, usually polyester or epoxy resin, with reinforcing fibers like glass. The fibrous reinforcement significantly enhances the strength-to-weight ratio of the material, making it stronger and more durable than conventional plastics. FRP's resistance to corrosion, high-temperature, and impact makes it an excellent choice for harsh environments.

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