Lijin Trading sources its products primarily from high-tech enterprises Jinan Taicheng Technology Co., Ltd. (abbreviated as JTT) and Jinan Huaxin Locomotive & Rolling Stock Co., Ltd. (abbreviated as JHLR). Both companies specialize in the manufacturing and R&D of components and equipment, and maintain professional software and hardware development teams capable of designing various application software and smart hardware solutions. Lijin Trading is committed to introducing the high-quality products and advanced technologies of JTT and JHLR to the global market. From portable wheel lathes, electric lifting jacks, and grease dispensing equipment to the world's first internationally leading fully electric underfloor wheel lathe, these products serve as a solid foundation for Lijin Trading's expansion into international markets. Leveraging its expertise in import-export agency and international trade channel development, Lijin Trading helps JTT and JHLR products overcome geographical barriers and has successfully established cooperative relationships with countries including South Korea, Kazakhstan, Jamaica, Nigeria, Angola, South Africa, Serbia, and Laos.

Jinan Lijin International Trading Co., Ltd. (abbreviated as Lijin Trading) is a specialized supplier of Chinese-manufactured railway locomotive and rolling stock components and maintenance equipment. The company provides dedicated train parts including wheel sets and brake discs for high-speed trains, regional trains, urban subway trains, locomotives, and carriages, along with key diesel engine components such as pistons, piston rings, piston pins, cylinder heads, cylinder liners, connecting rods, camshafts, bushings, and bearing shells. Its range of railway track maintenance equipment includes fully electric underfloor wheel lathes, portable wheel lathes, electric lifting jacks, grease dispensing equipment, wheel flange lathes, and fuel injection pump test benches.