BlogsA real lightweight (in a good way)

A real lightweight (in a good way)

A new manhole adjustment system is designed to speed manhole repairs and leave a smooth road surface
  • By Ted J. Rulseh
  • April 11, 2010

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When I saw the PRO-RING manhole repair system at the 2010 Pumper & Cleaner Expo, I had a strange experience. I saw a stack of black rings of various thicknesses that from a distance of several yards looked like cast iron. Yet people in the Cretex Specialty Products booth were...

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