Shandong Heze Detong New Materials Technology Co., Ltd. is a high-tech enterprise affiliated with Puran Technology, specializing in the R&D and manufacturing of rail transit brake friction materials. It is a key supplier of critical components for major EMUs in China, including the Fuxing and Hexie series.

Address: No. 1888 Lanzhou Road, High-Tech Zone, Heze, Shandong, China  

Email: huangpu@purankeji.com  

Tel: +86-10-88286972

Shandong Lingborui Rail Transit Technology Co., Ltd. is a manufacturing base for hydraulic dampers used in rail transit vehicles. With independently developed processes and technologies, the company is equipped with advanced production facilities, including welding robots, cleaning lines, flexible assembly lines, and automatic painting lines, as well as comprehensive testing and inspection equipment.

Its equipment and technology are at an industry-leading level, with an annual production capacity of 300,000 units.

The EMU hydraulic dampers manufactured by the company have obtained CRCC certification for application in multiple EMU models, including CRH380B/BG/BL/CL/BJ/BJA, CRH3C, CR400BF, and CR300BF (with a maximum speed of 350 km/h). The company is one of the earliest hydraulic damper manufacturers in China to obtain CRCC certification and covers the widest range of vehicle models.

Address: No. 1888 Lanzhou Road, High-tech Zone, Heze City, Shandong Province  

Email: huangpu@purankeji.com  

Tel: +86-10-88286972

Beijing Aidebao Electronic Technology Service Co., Ltd. is a high-tech enterprise specializing in the technical development, testing, maintenance, and after-sales services of electronic and electrical systems for rail vehicles. The company is capable of providing component-level maintenance for a wide range of electronic and electrical equipment used in rail transit.

It is a leading enterprise in China’s rail transit sector for the maintenance of electronic circuit boards and control modules, featuring comprehensive testing capabilities, advanced technologies, and visual verification methods.

Address: Room 703, Building 1–10, No. 6 Sihezhuang Road, Fengtai District, Beijing, China
Email: puangpu@purankeji.com

Tel: +86-10-88286972

Ruiwei Hengda (Suzhou) Technology Co., Ltd. serves as Shandong Lingborui’s R&D center for high-end rail transit vehicle dampers. It is equipped with over 40 advanced R&D and testing systems, including industry-leading damper performance test benches (MTS), high-speed damper performance test benches (with speeds up to 2.2 m/s), precision 5-axis automatic machining centers, multi-station vertical damper fatigue test benches, multi-station lateral damper fatigue test benches, and rotary damper performance test benches.

The company has strong capabilities in the R&D and design of hydraulic dampers. In terms of both technical specifications and application performance, its R&D and testing equipment are on par with those of the China Academy of Railway Sciences and Southwest Jiaotong University.

Address: Room 602, Area A, Building 3, and Room 101, Building 1, No. 99 Suhong West Road, Suzhou, China  

Email: huangpu@purankeji.com  

Tel: +86-10-88286972

Shandong Yuntie New Material Technology Co., Ltd. is a high-tech enterprise specializing in core components for rail transit. The company focuses on the research, development, production, and sales of pantograph carbon contact strips.

Its products cover a wide range of rail transit vehicles, including high-speed trains, locomotives, freight trains, urban rail systems, and subways, providing reliable power transmission solutions for the safe and stable operation of trains.

Address: No. 1888 Lanzhou Road, High-tech Zone, Heze City, Shandong Province

Email: huangpu@purankeji.com

Tel: +86-10-88286972

Guizhou Huaxing Aviation Technology Co., Ltd. is a professional manufacturing platform specializing in core braking components for railway freight cars. The company focuses on the research, development, and mass production of brake shoes, with an annual production capacity of 1 million units. It provides safe, reliable, and high-quality braking solutions for railway freight transportation.

Address: Middle Section of Feng'an Road (Caixing Avenue), Xixiu District, Anshun City, Guizhou Province, China

Email: huangpu@purankeji.com

Tel: +86-10-88286972

Puran (Germany) – Düsseldorf

A wholly-owned subsidiary located in Düsseldorf, Germany, responsible for international trade operations.

Address: Wiesenstr. 21a, 40549 Düsseldorf, Germany

Email: [np@puran-systems.de](mailto:np@puran-systems.de)

Tel: +49 172 4237338