The general conditions of the research process of the metal setting problem of the high friction composition brake shoes at home and abroad are introduced.
对内燃机车液力传动油的特性及要求等作了介绍，同时叙述了液力传动油的国内外概况，介绍了新型液力传动油的研究和应用情况。
The paper showed the composition, Make-technological and friction mechanism of the friction coat.
本文研究了这种耐磨涂层的组成、喷焊工艺及其耐磨机理。
There were developed asbestos free high friction coefficient composition brake pads made of poly compound adhesive agent, hybrid fiber and special fillings.
研制出由多组份粘合剂、混杂纤维及特殊填料制成的无石棉高摩擦系数合成闸片。
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