Precision Electronic Components Mfg. Co. Offers Potentiometers with Polymer Track Resistant Element. Precision Electronic Components Mfg. Co. Is an ISO 9001:2000 certified company. Potentiometer with Polymer Track Resistant Element is used in the field of Audio Amplifiers, Washing Machines, Avionics, Instrument Technology, Defence Electronics etc. Potentiometer with Polymer Track Resistant Element is available with 230V Mains Single pole and Double pole Switch.