Since entering the railway supply chain in 2013, Luoyang Guohan has supplied section insulators, neutral section insulators and high-voltage disconnectors to more than 20 railway bureaux under China State Railway Group, including Zhengzhou, Wuhan, Xi'an, Lanzhou, Nanning, Urumqi, Harbin, Jinan, Shenyang, Kunming and Qinghai-Tibet.
Typical applications: OCS new-build and capacity expansion, sectioning post and substation renovation, rigid catenary in metro depots, and emergency replacement during maintenance windows.
Notable awards include the 2022 and 2025 first/second batch section insulator joint procurement of China State Railway Group, the 2026 OCS disconnector regional joint procurement of Zhengzhou Railway Bureau, and the Xining station capacity expansion project of Qinghai-Tibet Railway Group.
Tender documents — CRCC certificates, type test reports, factory inspection records and award notices — are archived by project number and can be provided on request.