wear hardness testing apparatus 耐磨硬度试验仪
wear hardness machine 圆盘耐磨硬度试验机
strong wear hardness 石油专业
wear hardness mveryine 圆盘耐磨硬度试验机
Hardness and Wear 硬度与耐磨性
Engineering ceramic materials are difficult to machine because of their outstanding properties, such as high hardness, high wear resistance, high erosion resistance and high brittleness.
工程陶瓷因为具有极高的硬度、良好的耐磨耐蚀性和很高的脆性，使其成为难加工材料。
This surface has extreme hardness (60 RC. ), excellent wear and corrosion resistance, and low coefficient of friction.
这表面有极高的硬度（60局。），耐磨性和耐腐蚀性，低摩擦系数。
Pump cover material with steel ZG230-450 more, can also be used ductile iron, the latter two materials contrast of wear resistance and hardness and heat resistance to be because the former.
泵体、泵盖的材质采用铸钢ZG230-450的较多，也可以采用球墨铸铁材质，两种材质对比后者的耐磨性和硬度以及耐温性要因为前者。
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