A large amount of the work need to be done in Process Manufacturing is in combining, mixing and preparing (e.g., heating, pressurizing) combinations of raw materials and intermediates. Towards the end of the production process is the packaging of your production output, into forms of use for customers, and often in a manner to accommodate Sales with promotional packaging. You need a great deal of versatility at this BOM stage, especially with consumer products, in which packaging provides the sizzle. Also, when providing materials to customers that they then remanufacture, your containers must be effective yet low in cost.