http://www.tzhrmachine.com/slip-roll-machine/ Slip Roll Machine Free Sample Product Information The Manual Slip Roller Machine is made of an iron frame, which can release the upper roller quickly. This machine is designed to bend sheet metal into curved panels or cylinders and is small and easy to use. It is designed to sustain years of maximum capacity rolling. Bench mounting these adaptable and small rollers adds to their ease. Besides, it is made specifically for tiny rolling applications. Precision turned, ground, and polished carbon steel rolls, as well as cast iron side frames, are included in this simple-to-use roller machine