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唐山冶金矿山机械厂广大职工在生产板弹簧电磁振动给料机的基础上,结合我国实际情况,研制成功大型螺旋弹簧电磁振动给料机。为了对该机进行全面审查,在河北省机械工业局、唐山市革委会生产指挥部科技处共同主持下,于1974年5月7日至16日在唐山市召开了DZL_(15)、DZL_(25)、DZL_(40)型电磁振动给料机鉴定会。来自全国32个单位的52名代表参加了会议。
Tangshan Metallurgical Mining Machinery Plant majority of workers in the production of plate spring electromagnetic vibrating feeder based on the actual situation in China, the successful development of large spiral spring electromagnetic vibrating feeder. In order to carry out a comprehensive review of the aircraft, in Hebei Province Machinery Industry Bureau, Tangshan City Revolutionary Committee headquarters, under the auspices of the Ministry of Science and Technology co-sponsored, in 1974 May 7 to 16 in Tangshan held DZL_ (15), DZL_ (25), DZL_ (40) electromagnetic vibration feeder identification will be. Fifty-two representatives from 32 units nationwide attended the meeting.