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在深入批林批孔的大好形势下,哈尔滨市三结合技术协作委员会焊接小组,于二月二十二日在哈尔滨焊接研究所召开了汽车排气阀等离子粉末堆焊修复现场会。参加这次会议的有哈市汽车修理
In an in-depth situation Lin hole approved the excellent situation, Harbin City, three joint technical cooperation Welding Committee held on February 22 at the Harbin Welding Institute held a car exhaust valve plasma powder surfacing repair site. Harbin City to participate in the meeting car repair