Tianjin Dingrunda Group - Latest Industry Insights and Solutions

What is S5, S4, S3.2, and S2.5 mean in PP-R pipes?
2026/03/13
When purchasing PP-R pipes, we often see markings such as S5, S4, S3.2, and S2.5 on the pipe wall. What do these markings mean? Here's a brief explanation. <BR> I. What is the "S" in pipe series? "S" is a designation for pipe ser...
How Are UPVC Pipes Applied in Agricultural and Infrastructure Projects?
2026/03/20
UPVC pipes have revolutionized modern agricultural and infrastructure development through their exceptional durability, chemical resistance, and cost-effectiveness. These unplasticized polyvinyl chloride systems provide reliable water distribution, d...
How Does UPVC Pipe Enhance Corrosion Resistance in Pipeline Systems?
2026/03/17
Pipeline systems across industrial and municipal applications face constant challenges from corrosion, which can lead to catastrophic failures, environmental damage, and significant economic losses. Traditional metallic pipes have long been the stand...
Why Is PVC Pipe Suitable for Underground Pipeline Engineering Projects?
2026/03/11
Underground pipeline engineering projects demand materials that can withstand diverse environmental conditions while maintaining structural integrity over extended periods. Among the various piping materials available in the market, PVC pipe has emer...
How Can PVC Pipe Improve Flow Efficiency in Infrastructure Pipelines?
2026/03/04
Infrastructure pipeline systems form the backbone of modern utilities, delivering water, gas, and other essential services to communities worldwide. The selection of appropriate piping materials directly impacts system performance, maintenance costs,...
Policy Interpretation: China Cancels Export Tax Rebate for PVC Raw Materials
2026/03/03
Effective April 1, 2026, China will cancel the 13% VAT export rebate on PVC pure powder, unplasticized PVC, and plasticized PVC. Why This Policy?This move is part of China's broader effort to promote high-quality industrial development and curb "invo...