... and high speed 2 ply,3 ply,4 ply,5 ply, 7 ply corrugated cardboard production line.carton packaging ... machine Characteristics:1. Applied to mid and high speed production line.2. High pressure fan structure with silencer is used ... with chrome.6.Automatic, interval, circular and high grease provide reasonable lubrication.7. Infrared detector assures ... ,2200mm,2500mm,2800mm.3. Flute Type: A, B, C, E, F, BC.