金杯电工：公司主要生产通用及特种橡套电缆、低压特种电缆

Group 1 - The core viewpoint of the article highlights that Jinbei Electric (002533) is committed to a development strategy focused on "special, high, precise, and specialized" products [1] - The company’s special cable division primarily produces general and special rubber-sheathed cables, as well as low-voltage special cables, which are widely used in various sectors including engineering machinery, rail transit, wind power generation, coal mining, and new energy [1] - Jinbei Electric serves as a major supplier for China Railway Engineering Equipment Group and China Railway Construction Heavy Industry Group, providing "special cables for shield machines" that are applicable in shield machines [1] Group 2 - The company's cable products have been utilized in the Sichuan to Tibet section of the Sichuan-Yunnan Railway project [1]