Ercon Composites manufactures Pultruded Fibreglass Cross Arms. Ercon Composites is an ISO 9001 certified company. The company manufactures Glass Fibre Reinforced Plastic Pultruded profiles and products. The Pultruded Fibreglass Cross Arms has very good insulating properties and helps electricity boards in reducing birdage faults. In addition these cross arms have excellent corrosion resistance and much better life. Pultruded Fibreglass cross arms are available for 11KV and 33KV for single and Double Poles.