1979年机电产品进入调整阶段,机电行业任务减少,为机电产品配套的继电器需求量也因此减少,价格下降。于是在生产继电器产品的行业中竞争十分激烈。一个生产继电器的街道工厂——上海永嘉仪表厂,四年多来,不但生产不受影响,而且产值每年增加, In 1979, mechanical and electrical products entered the adjustment phase, the tasks of the electromechanical industry were reduced, the demand for relays for electromechanical products was reduced, and prices fell. As a result, the competition in the production of relay products is fierce. A street factory that produces relays - the Shanghai Yongjia Instrument Factory. For more than four years, not only the production has not been affected, but the output value has increased every year.