Educational diagram with carpet recycling as a case

Source: Bailey, R., Bras, B.,  Allen, J., 2004. Applying Ecological Input-Output Flow Analysis to Material Flows in Industrial Systems: Part II: Flow Metrics.

The article in which this Material Flow Analysis diagram was published is part II of an explanation of how to apply flow analysis.  The case they chose to illustrate is that of carpet recycling.  The manner in which the Nylon Reclamation (H₄) process box is split is disconcerting.