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Beskrivelse
Those neat bundles of hay we see in a farm field are created by a fantastic farm machine called a hay baler. And just one bale of hay can weigh as much as 2,000 pounds (907 kg)! Along with learning how a hay baler does its job, readers will find out what kind of crop hay is and why it's needed. They'll also see cool, colorful photographs of these and other big machines at work, including labels to aid in comprehension. Farm work has never looked so fun!
