... A,BC,D,E alternate 5. production speed: 210-230 m/min, single wall(3 ply )180-210 m/min, double ... , the production line could be checked up and accepted. PAPER FOR TESTTest for the highest speed of 3 ply: corrugated paper:125 ... Screen Numeral Display: The production line speed, Cardboard Length of Shifts Output, clew while ascending or descending speed 1 set 5 ply Corrugated CARDBOARD Production line