Distro Boxes are used to split the big and medium sized feeders into multiple feeds to allow power distribution throughout a film set. Specializing in power generation & power distribution products, Valid continues to develop new technology that is safe and effective to use and gives end users more options when managing power. Our blown film portfolio offers the right machine for your individual production needs: From pre-optimized solutions for standard products to highly customizable modular solutions to produce demanding products. NOTE:. Automatic power distribution box production line manufacturer for 150-400mm depth electric enclosure forming and bending process. Let's find out which ones stand out.