南京无线电元件三厂用钢焊片代替铜焊片生产电位器,使电位器上机波峰焊接合格率达到99.8%,产品成本下降70%以上。过去,该厂生产电视机、收音机及电子仪器用的电位器焊片都是用钢片镀银而成。 Nanjing Radio components plant with steel welding instead of brass welding piece potential production, potentiometer wave welding machine on the pass rate of 99.8%, the cost of products dropped by more than 70%. In the past, the plant produced the potentiometers for television sets, radios and electronic equipment.