The Ductile Iron Pipe Research Association (DIPRA)...

The Ductile Iron Pipe Research Association (DIPRA) is an organization dedicated to advancing the knowledge and understanding of ductile iron pipes. I have visited their website, dipra.org, multiple times and have always found it to be a valuable resource. The information provided is well-researched and up-to-date. The website is easy to navigate, making it effortless to find the information I need. The case studies presented on the website have given me insights into the benefits of using ductile iron pipes in various construction projects. Overall, I am impressed with DIPRA and their commitment to promoting ductile iron pipes.