The reason why the price difference of wires is huge is that the raw materials used in the production process are different. The main raw materials for producing electric wires are electrolytic copper, insulating materials and sheathing materials. At present, electrolytic copper is more than 70000 yuan per ton in the raw material market, while the recovered copper is much cheaper; The price difference between high-quality products and defective products of insulating materials and sheathing materials is even greater. In addition, insufficient length and insufficient glue content of insulator are also important reasons for price difference. The length of each reel is about 100 meters for superior products and 90 meters for inferior products; The excellent rubber content of insulator accounts for 350.
