DUNYUN.DUNYUN, established in 2007 and headquartered in Shaoxing, Zhejiang, is a comprehensive manufacturer specializing in plumbing system components. The company primarily markets its “DUNYUN” brand products, which extensively cover water supply, heating, central air conditioning, and gas systems. These products fall into two main categories: Second, diverse piping materials and fittings including PP-R pipes, aluminum-plastic composite pipes, PERT radiant floor heating pipes, and stainless steel corrugated pipes. Leveraging its professional technical team, the company possesses comprehensive capabilities spanning product design, production testing, and sales services. Its products have penetrated the water, gas, and HVAC sectors, establishing long-term strategic partnerships with numerous brand manufacturers.