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苏联近年来经过广泛的对硬质合金特性及其在钻凿岩石时的磨损性质的研究，从而设计并规定了若干种合理型式和尺寸的硬质合金片，以用于镶嵌凿岩的钎子或钻探钻头。
In recent years, the Soviet Union has extensively studied the characteristics of cemented carbide and its wear properties during drilling of rock to design and stipulate a number of carbide plates of reasonable type and size for use in drilling boring Or drill bit.