沈阳市农机配件总厂、北京有色冶金设计研究总院、北京电力设计院共同研究,由沈阳市农机配件总厂、沈阳机油泵厂设计、试制的Z73SA—16Dg300型颗粒泥浆阀产品鉴定会于1982年5月20日至23日在首钢矿山公司召开。参加会议的有来自全国14个省市39个单位的55名代表,会议由总院主持。 Shenyang Agricultural Machinery Parts Factory, Beijing Nonferrous Metallurgy Design and Research Institute, Beijing Electric Power Design Institute of joint research, from Shenyang Agricultural Machinery Parts Factory, Shenyang engine oil pump plant design, trial production of Z73SA-16Dg300 particle mud valve product identification in 1982 May 20 to 23 in Shougang Mining Company held. There were 55 delegates from 39 units in 14 provinces, cities and municipalities participating in the conference, which was presided over by the General Hospital.