DLHUAYANG.DLHUAYANG was established in 2004 and is headquartered in Dalian, Liaoning Province. As a specialized enterprise engaged in the R&D and manufacturing of mechanical seal products, its core offerings include pump seals, agitator seals, compressor dry gas seals, and supporting auxiliary systems. These products are widely applied across multiple industrial sectors such as petroleum, chemical engineering, shipbuilding, and power generation. Leveraging robust in-house R&D capabilities, its large-scale agitator seals and compressor dry gas seals have successfully penetrated markets in the European Union, the United Kingdom, and the Middle East. The company has obtained DNV ISO9001 and American Petroleum Institute (API) certifications, implementing a rigorous quality management system that has established a strong technical reputation and market credibility within the industrial sealing sector.