'Slab Hauler' is a big red machine with six huge tires and he guides us around a steel mill, after showing us how he can use his strong pincers to pick up slabs of hot steel and transport them to the slab yards and into the rolling mills. Since he moves around the mill so much, he knows all the machines that work there. He introduces us to 'Dozer' who grooms the hills of crushed coal and 'Scraper', the bottom loading vehicle that transports the coal to the coke