道通科技,688208,收入构成,报告日期,2019-12-31, 按行业,收入(万元),成本(万元),利润(万元),毛利率,利润占比 其他(补充),1582,862,720,45.52%,0.97% 汽车电子行业,117998,44149,73849,62.58%,99.03%