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为了对国外热处理用淬火油油品性能的了解,便于研制及发挥新淬火油品的潜力,以及对引进国外热处理装备和国内技术改造中
In order to understand the properties of quenching oil products used in overseas heat treatment, it is easy to develop and exert the potential of new quenching oil products as well as to introduce foreign heat treatment equipment and domestic technological transformation