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为推动热处理工艺技术的发展,建筑工程机械行业热处理协会五月五日在郑州于举办了为期三个月的中小厂矿初级热处理技术施工人员技术培训班。该协会还和河南省机械工程学
In order to promote the development of heat treatment process technology, the heat treatment association of the construction engineering machinery industry held a three-month technical training course for the construction of primary heat treatment technology for small and medium-sized factories and mines in Zhengzhou on May 5th. The Association also works with Henan Mechanical Engineering