一次，沈阳市技术监督局对进入该市的电动机进行突击抽查。抽查结果，39家企业的电动机，只有衡水市电机厂的“猛牛”牌电动机质量指标全部合格。有的厂家不服气，私下又对其进行了抽查，结果合格率又是100％，这在当地引起了轰动。早在1988年，衡电首次接受出口500台电机的任 Once, the Shenyang City Technical Supervision Bureau conducted spot checks on the electric motors entering the city. As a result of spot check, the electric motors of the 39 companies were only qualified for the “Meng Niu” brand electric motor quality indicators of Hengshui Electric Factory. Some manufacturers are not convinced, but also carried out random checks on them, the results of the pass rate is 100%, which caused a sensation in the local. As early as 1988, Hengdian first accepted the export of 500 motors.