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High boron iron - based alloy ( HBIA ) is a kind of new wear - resistant material.
高硼铁 基合金 是一种新型 耐磨 材料.
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The valve rubber is made of wear resistant material, such as oil - proof rubber and epoxy resin.
凡尔胶皮采用耐油橡胶及环氧树脂胶等耐磨密封材料制成.
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