How DINSEN Moves Toward PAM Standards Through Technological Innovation
July 2026, Handan, China. A small Chinese foreign trade company with just 10 employees is writing its own “grassroots-to-success” story. From an obscure trader to a supplier exporting to more than 30 countries and regions, DINSEN IMPEX CORP has spent a decade demonstrating the journey of Made in China from following to keeping pace in the global cast iron pipe industry.
Founded in 2015 in Handan, Hebei Province, DINSEN focuses on the development and sales of cast iron pipes for the construction sector. At that time, the global cast iron pipe market was already dominated by industry giants—France’s Saint-Gobain PAM stood as the benchmark, with product quality and brand influence representing the “ceiling” of the industry. PAM-standard ductile iron pipes are renowned for their superior pressure resistance, impact strength, and service life exceeding 100 years, complying with international standards such as EN877:2021, EN545, and ISO2531.
How does a “grassroots” player rise? DINSEN’s answer: step by step, with an unwavering commitment to quality.
In 2017, the company jointly invested in electric furnace production equipment with clients, securing more competitive pricing and shorter delivery times through deep integration with upstream suppliers. In 2018, DINSEN ranked first in export volume among companies in Handan’s Congtai District. In 2019, it successfully passed the ISO9001 quality management system certification from the British Standards Institution (BSI). That same year, it launched global marketing and promotion of its own brand “DS,” participating in professional exhibitions in Germany, Russia, Dubai, Vietnam, and other key markets.
The real turning point came in 2023, when DINSEN invested USD 70,000 in Hong Kong-type testing certification for its own brand, formally initiating brand channel development. In 2024, it jointly established an international logistics company with a Saudi client, extending services to freight forwarding, customs declaration, and quality inspection. By 2025, the company’s export volume reached nearly USD 4,000,000, contributing USD 50,000 in national taxes.
Moving Toward PAM Standards: The Logic of “Catching Up” Through Technological Innovation
In the cast iron pipe industry, “PAM” represents not just a brand but a synonym for high quality and reliability. Saint-Gobain PAM products are manufactured using the De Lavaud centrifugal casting process, offering high tensile strength and pressure resistance, with coating technologies that often exceed industry standards. For Chinese companies, moving toward PAM standards means comprehensive upgrades in materials, processes, and testing.
DINSEN’s approach is clear and pragmatic: securing premium production capacity through equity partnerships with upstream suppliers, standardizing internal management via ISO9001, and driving quality improvement through certification testing of its own DS brand. More importantly, the company directly engages high-end markets in Germany, the UK, France, Norway, Sweden, and the US through Alibaba International Station and global trade shows—clients in these markets are highly familiar with PAM standards, and their recognition serves as the ultimate “litmus test” for technological competence.
Significantly, China’s cast iron pipe industry as a whole is rapidly advancing in technical capability. In June 2026, ISO 24131-4 Polymer lining for ductile iron pipes — Requirements and test methods — Part 4: Epoxy ceramic lining, formulated under the leadership of Xinxing Ductile Iron Pipes Co., was officially published—the first successful case of a Chinese national standard for cast iron pipes being elevated to an ISO international standard. That same year, China also led the revision of ISO 13470 Non excavation application of ductile iron pipe system, which was formally initiated, marking China’s transition from a major cast iron producer to a global cast iron power.
From “Made in China” to “Global Brand”: The Ambitious Future of DS
To date, DINSEN’s cast iron pipe products have been exported to more than 30 countries and regions, including Germany, the UK, France, Norway, Sweden, and the US. Its client portfolio includes two listed companies and a century-old Nordic brand enterprise. However, the company’s founders clearly recognize that gaps remain in brand premium and technological barriers compared with global giants.
“Our vision is to build a world-class national pipe brand,” says the DINSEN. To that end, the company is accelerating standardized management, continuously learning from international best practices, and striving to serve diverse markets and clients with better solutions. The 2024 joint logistics venture with a Saudi partner marks a pivotal step in the transition from “product export” to “service export.”
From construction sites in Cape Verde to the supplier roster of a century-old Nordic brand, DINSEN’s decade-long journey proves that even in the most traditional cast iron pipe sector, a “grassroots” player can move toward the highest industry standards through sustained technological innovation and management improvement.
In the era of China’s transformation from “Made in China” to “Created in China,” the DINSEN story of “catching up from behind” is only just beginning.
Post time: Jul-08-2026
