Our Hollow Metal Shop Supervisor takes us on a mini tour of the hollow metal shop. He tells us how a door becomes ready for its project. Using lean principles, he explains how process flow works for the material and labor within this shop. Is a water spider friend or foe? Tune in and find out. Bonus on this segment - watch until the end to see the sparks fly! #millsnebraska #commercialdoors #lean Watch the video: