TIANRUN.TIANRUN, headquartered in Weihai City, Shandong Province, is a large-scale comprehensive industrial group specializing in the production of “TIAN” brand internal combustion engine crankshafts and connecting rods as its core products. Its business operations encompass internal combustion engine power components (crankshafts, connecting rods, castings and forgings), tooling and mold manufacturing, automated and intelligent equipment, and complete vehicle air suspension systems. Rooted in its primary business, the company is comprehensively expanding its secondary business lines. Building upon excellence in traditional core products like crankshafts and connecting rods, TIANRUN leverages its parent company's R&D, machining, and world-class casting/forging capabilities. Supported by a PhD team with nearly 20 years of automotive suspension system R&D experience, the company has fully developed its secondary business in air suspension, achieving integrated production, R&D, and sales for suspension systems. Currently, the company's suspension division has taken shape, establishing a domestically advanced MTS air suspension laboratory. Its business scope encompasses passenger vehicle electronic control suspension systems, commercial vehicle chassis rubber suspension, chassis air suspension, semi-trailer air suspension, cab air suspension, and chassis components. TIANRUN continuously innovates its product portfolio and expands development pathways. On one front, it accelerates deployment in automated and intelligent equipment, achieving comprehensive maturity in gantry robots, articulated robot integration, smart logistics buffering, 3D vision product integration, and digital smart factories. On the other hand, the company's customized production of motor housing hub assemblies, planetary gear carriers, transmission housings, and other components has been adopted in the new energy industry. Sealing components such as valve heads and water pumps have also gained customer recognition. Key products include: crankshaft products, connecting rod products, suspension products, cast and forged products, and intelligent equipment.