证券日报网讯12月10日，国缆检测（301289）在互动平台回答投资者提问时表示，公司主营业务为电线 电缆及光纤光缆的检验检测等专业技术服务，公司围绕重大工程及装备配套用线缆的质量及技术需求， 建设了航空航天用电缆检测评估及标准化服务能力。 ...

Core Viewpoint - The company, Guolan Testing (国缆检测), is engaged in inspection and testing services for wires, cables, and optical fibers, serving major state-owned enterprises and significant infrastructure projects in China [1]. Group 1: Company Overview - Guolan Testing's main business includes inspection and testing services for wires, cables, and optical fibers, which are crucial for various applications in national economy and people's livelihood [1]. - The company collaborates with well-known domestic and international wire and cable manufacturers, as well as important users such as State Grid, Southern Power Grid, China National Petroleum Corporation, and China Petroleum & Chemical Corporation [1]. - The company also serves major engineering projects in rail transportation (maglev, high-speed rail, subways) and aerospace, along with product certification institutions like CTC, CRCC, UL, TUV, DEKRA, and CQC [1]. Group 2: Trading Information - As of July 29, 2025, Guolan Testing's stock closed at 50.59 yuan, down 0.28%, with a turnover rate of 1.79% and a trading volume of 13,900 shares, resulting in a transaction amount of 70.35 million yuan [1]. - On the same day, the net inflow of funds showed that institutional investors had a net inflow of 1.4683 million yuan, while speculative funds had a net inflow of 4.5357 million yuan, and retail investors experienced a net outflow of 6.0039 million yuan [1].