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

The Ductile Iron Pipe Research Association (DIPRA) is a reputable organization that strives for excellence in the field of ductile iron pipe research. Their website, dipra.org, is a valuable resource for anyone seeking information about ductile iron pipes. The content on their website is well-organized and provides in-depth knowledge about the various applications of ductile iron pipes. Their commitment to research and innovation is evident from the quality of the content they produce. I have found their website to be an invaluable tool in my work as a civil engineer. The information provided on dipra.org has helped me make informed decisions and select the right materials for my projects. Overall, I would rate DIPRA and their website as excellent.