Does the questioner want to ask "How many meters is the longest length of a bundle of Jiayou cables?" 100 meters. The national standard for a bundle of cables is nominally 100 meters, and the length of each coil is 100 meters for high-quality products, while only about 90 meters for defective products. Jiayou Cable Technology Co., Ltd. was established on June 6, 2018. The company's business scope includes technology development and technology transfer of wire and cable technology.