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Dr. James G. Collin

Dr. Collin is a geotechnical engineer and President of the Collin Group.

1 article by Dr. James G. Collin:

masonry

Segmental Retaining Wall Design Manual Update



 

“The MCAA keeps my company competitive with other building materials.”

John Smith
John J. Smith Masonry Company
MCAA member since 1990

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