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由中国机械工程学会粉末冶金专业学会、中国金属学会粉末冶金学会、中国有色金属学会粉末冶金及金属陶瓷学术委员会所属摩擦材料及特殊材料学组共同举办的全国粉末冶金摩擦材料学术交流会于1989年
By the Chinese Mechanical Engineering Institute of Powder Metallurgy, Chinese Society of Metallurgical Society of Powder Metallurgy, China Nonferrous Metallurgy Society of Powder Metallurgy and Metallurgy Academic Committee belonging friction materials and special materials group co-organized by the national powder metallurgy friction material academic exchange in 1989