System Plast™ has designed aluminum extrusions which are now commonly used as side guide rails and as support members under belting and tabletop chain. The wear-resistant inserts are made from UHMW materials. There are a number of interchangeable combinations for use in a variety of packaging machine and conveying applications. The aluminum rails are rugged, easily mounted structural members and the plastic inserts protect the package being conveyed from any metal contact and create a low friction, non-marring surface to guide and support the product. System Plast™ Combination Rail, Group B, 1.24 in Overall Width, 120 in Overall Length