Product Decisions Under Bottlenecked Operations Mill Metals Inc. has three grades of metal product, Type 5, Type 10, and Type 20. Financial data for the three grades ar Mill's operations require all three grades to be melted in a furnace before being formed. The furnace runs 24 hours a da hours required per unit of each product are as follows: The Marketing Department is considering a new marketing and sales campaign. Determining the unit contribution margin per furnace hour will assist in making your decision. Round the unit contribut Which product should be emphasized in the marketing and sales campaign in order to maximize profitability