The Cretex PRO-RING™ manhole grade adjustment system is a lightweight alternative to concrete grade rings or brick and mortar used in the construction of manholes and other utility structures. PRO-RING is made from expanded polypropylene, a high-strength, impact-absorbing plastic that meets AASHTO HS-25 load requirements. PRO-RING also meets the requirements of ASTM C969 (exfiltration test) and C1244 (vacuum test), has excellent chemical resistance, and is approximately 1/20th the weight of concrete grade rings.
The world of manufacturing is changing, and Generative AI is one of the many change agents. The 2024 State of Smart Manufacturing Report takes a deep dive into how Generative ...
The world of manufacturing is changing, and Generative AI is one of the many change agents. The 2024 State of Smart Manufacturing Report takes a deep dive into how Generative ...
