Castagra

Tatsuya Nakagawa is an accomplished entrepreneur, author, and expert on innovation & marketing.

He is the co-founder of Castagra Products. Castagra develops, proves and delivers, game changing innovations for the building materials and coatings industry.

http://www.castagra.com/

http://castagraroofing.com/

https://www.linkedin.com/in/tatsuya/

https://twitter.com/tatsuyanakagawa

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