The composite material has resulted in greater load carrying capacity, a reduced thermal expansion, greater wear resistance and fatigue endurance.
合成材料具有更好的承载能力，更低的热膨胀系数，更好的耐磨性和更好的抗疲劳性能。
Tungsten can improve the hardness and thermal strength of steel, and can improve the wear resistance of steel.
钨能进步钢的红硬性和热强性，并能进步钢的耐磨性。
They are outstanding for their hardness, density and resistance to thermal shock, wear, chemical attack and self-lubricating property.
它具有硬度高、 密度高、抗热振性、 耐磨性抗化学腐蚀性和自润滑性好等特点。
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