... 2. when the machine is running, web break off suddenly for reason of speed change sharply of problem from jumbo roll3 ... a log is rewinding, the next core is ready.5. for the reason of using advanced technology:PLC system, synchronous frequency ... embossment, double embossment, steel to steel embossmentEmbossment down rollerFelt roller, paper roller, rubber rollerJumbo roll stand1-3 1-3 pliesPrinting1-2 ...