Loong Sun Pipe Fittings Industrial Co., Ltd.

Founded in 2004, Shanxi Longsheng Yuanyuan Technology Co., Ltd. Has grown over two decades into a modern, integrated enterprise that combines R&D, foundry, machining, and sales. We specialize in producing malleable-iron pipe fittings, grooved piping components, and precision castings. Our in-house brand "LSZZ" has earned rising recognition in the industry, providing products, services, and turnkey solutions for water supply and drainage, fire protection, natural gas, and other systems, supported by a mature and stable distributor network across multiple regions in China.

The company is located in the Shixiang Industrial Park, Taigu District, Shanxi Province, with a registered capital of RMB 10 million and total assets of RMB 80 million. The company covers over 30, 000 m², with approximately 21, 000 m² of floor area, and employs over 300 people. We operate under the ISO 9001 quality-management system, running three fully automated vertical molding lines alongside a full suite of testing equipment. From incoming raw materials to finished-goods dispatch, we maintain end-to-end process control to ensure stable product performance and cost-effectiveness.

In 2010, the company added an investment of over RMB 30 million. In 2014, the automated production line was commissioned, annual output exceeded 10, 000 tons, and headcount grew to 300+. In 2020, the company built a digital foundry shop, upgraded digital office systems, achieved end-to-end data management, and improved production efficiency by 50%; First exports to South Korea marked the start of internationalization.

Since its establishment, Longsheng Yuanyuan has adhered to green manufacturing and environmental responsibility, actively building an efficient, clean, low-carbon, and circular production system. The company is equipped with five environmentally friendly electric furnaces, and all dust-generating points are fitted with collection hoods and dust-removal systems. In addition, the company has invested in a photovoltaic power generation system, which supplies approximately 20 percent of its production electricity demand, and has established a comprehensive waste management program with a recycling and reuse rate exceeding 95 percent for production scrap.

Throughout its development, the company has received broad recognition from both the industry and society. It has been awarded honors including China Engineering Construction Recommended Product, Transformation and Innovation Award, Shanxi "Specialized, Sophisticated, Distinctive and Innovative" SME, Level-3 Safety Production Standardized Enterprise, and National High-Tech Enterprise. To date, the company holds one national invention patent and fifteen utility model patents, forming a solid foundation for long-term competitiveness.

At present, Longsheng Yuanyuan has established an extensive distribution network covering more than 60 regions across China, while actively expanding into overseas markets including South Korea and Southeast Asia. Looking ahead, Longsheng Yuanyuan will continue to expand its market presence, optimize its distribution system, and collaborate with global partners through high-quality products and more efficient services to achieve shared growth.