日本AV免费一区二区三区播放

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  • Carbide Blades

    Tungsten alloy blade is made of tungsten carbide.Tungsten carbide is a kind of hard alloy material  which is made by the powder metallurgy process by the hard compound and the bonding metal of the hard metal.
    Cemented carbide  has high hardness, strength and toughness, good wear resistance, heat resistance, corrosion resistance and a series of excellent performance, especially high hardness and wear resistance of it, even at a temperature of 500 DEG C also remained unchanged, at 1000 degrees C still  have high hardness.Tungsten blades  are widely used in different tools.


    日本AV免费一区二区三区播放

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