Class Codes & Rates:

Code 4244 is assigned to risks that manufacture corrugated or fiberboard containers. Paper or paperboard is run over gas or steam corrugating rolls, then over silicate of soda roll, after which it is combined with either single or double facings. This combination travels over flat hot bed plates to affect adhesion and drying, then to the knife end of the machine where the paper is cut to sheet size and slit to width.