Founding: The founder, a graduate of a top-tier Chinese university (985 Project) with a degree in Mechanical Engineering, established Dorrey in Qingdao, bringing with him professional technical expertise and advanced industrial management concepts. The company focuses on the manufacturing and export of off-road vehicle modification parts and non-standard hardware products.

Deepening Manufacturing: Gradually established a complete production chain encompassing casting, forging, machining, and welding; established stable supply partnerships with major domestic automakers such as Chery, 212 (Beijing Off-Road), and Great Wall Haval, becoming a certified supplier. Customized metal product processing and export business experienced rapid growth.

Growth: Became a top 3 supplier of 4x4 off-road vehicles globally; continued to deepen its expertise in off-road vehicle modification parts, expanded into overseas markets, and established OEM/ODM partnerships with international off-road brands such as Jeep, ARB, and RHINO-RACK. STELLANTIS (a Fortune 500 company, whose subsidiaries include Jeep, RAM, and Chrysler) certified us as its 29th certified supplier globally, achieving rapid growth in annual sales.

New Beginning: Qingdao Yuekai Precision Manufacturing Plant was officially established, along with a professional R&D team. The company secured orders from Fortune 500 suppliers such as Jeep, comprehensively upgrading its manufacturing and R&D capabilities. The company launched its own brand, LANDACE (Land King) off-road modification parts.

Patent Accumulation: The R&D team continuously invested in product innovation and structural optimization, accumulating over 100 independent invention patents, forming a differentiated competitive barrier. The company achieved dual ISO 9001 and IATF 16949 certifications, establishing a full-process quality control system （CAE analysis, real-vehicle verification, fatigue testing, corrosion/aging resistance testing）.

Rapid Development: The company's self-built factory reached 18,000㎡ （including newly built production capacity）. It officially entered the supplier systems of OEMs such as Chery Automobile, Great Wall Motors, Beijing 212, and Sinotruk, beginning its foray into the domestic market. A global strategic partnership was established with Norway's Dropracks, making it the sole global manufacturer and exclusive global distributor of its intelligent lifting luggage rack system. The products received procurement verification from Tesla Group in the United States.

Capacity Upgrade: The existing 6,000㎡ factory is operating at full capacity, and a brand-new 20,000㎡ modern intelligent manufacturing base is under construction; it has been recognized as a National High-tech Enterprise and a Specialized and Innovative Enterprise, and continues to move towards the goal of delivering larger-scale orders and expanding new product lines.