is a whole automatically line to produce strut channels with holes punched or not.
Strut Channel is a standard cold roll formed steel used in electrical industry or constructions for structural support. Which is usually formed from metal coil strips, roll formed into an open channel section with lips to provide additional stiffness. The basis strut channel sizes are: 41*41. 21*21, and also some customized shapes. More information of Strut Channel, please visit Wiki.