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▲一一六厂于1985年2月9日至13日举办了宣贯GB3177-82《光滑工件尺寸的检验》及GB1957-81《光滑极限量规》骨干学习班。为
▲ The Liuyi Plant held the inspection of GB3177-82 “Smooth workpiece size inspection” and GB1957-81 “Smooth Limit Gauge” backbone training class from February 9 to 13, 1985. for