GRIN.GRIN Corporation was established on July 23, 2014, with its registered office in Loudi City, Hunan Province. As a high-tech enterprise, it integrates R&D of novel stainless steel materials, applied research, industrial welded pipe production, manufacturing of seawater desalination equipment and high-end heat exchange equipment, along with sales and service. The company primarily manufactures industrial welded steel pipes and high-efficiency heat transfer tubes using various corrosion-resistant materials, including austenitic, super austenitic, ultra-pure ferritic, and duplex steels. Additionally, GRIN holds an advanced position in the industry for R&D and manufacturing capabilities in seawater desalination equipment and micro-high-efficiency heat exchangers. Its products are exported to over 20 countries and regions, including the United States, Germany, the European Union, Russia, and Denmark. The company holds ISO9001, ISO14001, and OHSAS18001 management system certifications, along with Special Equipment Manufacturing Licenses, EU PED certification, and German AD2000 certification. It is a qualified supplier for the China National Nuclear Corporation (CNNC). Key products include high-efficiency heat exchange tubes, corrosion-resistant heat exchange tubes, fluid transport pipes, precision mechanical tubes, and coiled/bent tubes.
