一、简介我厂始建于1964年,厂名为“长春市冶炼生产合作社”,有工人近百名,产品有蒸馏锌、精铅、印刷合金、铅基轴承合金及再生铜合金等几个品种,所用废料均为铅、铜工业废料及灰渣料等。1966年企业年产值270万元,年利润15万元,铅回收率85%,铜回收率80%左右。1971年转为全民所有制企业,更名为“长 I. Introduction I plant was built in 1964, the factory called “Changchun City, smelting production cooperatives,” nearly a hundred workers, the products are distilled zinc, refined lead, printing alloys, lead-based bearing alloy and recycled copper alloy, and other varieties , The waste used are lead, copper industrial waste and ash residue and so on. 1966 annual output value of 2.7 million yuan, the annual profit of 150,000 yuan, 85% lead recovery, copper recovery rate of about 80%. In 1971 converted to a wholly state-owned enterprises, changed its name to "long