PNA Construction Technologies, an ITW business, has served as a trusted manufacturer of concrete joint stabilization and prot ... ection systems for over 20 years. You’ll find our products in heavy-traffic, high-load commercial and industrial facilities throughout North America. Today, we’ve expanded our capabilities to include engineering and design services for both interior floors and exterior pavements. We employ the most advanced engineering to optimize flatwork performance while minimizing total cost of ownership. read more