Reheat Furnace Scheduling Input Data

This data set includes relevant data to schedule steel slabs through three non-identical reheating furnaces. The data was provided by a steel manufacturer - for confidentiality reasons the data set is manipulated with a constant, arbitrarily chosen numerical value.
The first three columns contain the minimum residence time of the slab in the respective furnace: U.
The fourth column gives the minimum time between two successive slabs: G.
The last column indicates whether the slab needs to be reheated with the walking beam furnace: WB