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Goryeo Agricultural Machinery Goryo Agricultural Machinery is a specialized manufacturer of universal joints or power transmission devices and agricultural machinery linked to tractors. It manufactures and supplies 3 types of tractor plows, 13 types of rotavators and 4 types of large width rotavators. It particularly developed more than 40 types of universal joints for rice transplanters, rotavators, balers, disc rotary plows, mowers and harrows. These are currently being sold in the domestic market as well as exported overseas. 1. Field work after attaching tractor and machinery 2. Universal joint being operated after being attached to tractor and machinery 3. Simulation video of tractor and machinery after being matched 4. Machinery special parts 5. Characteristics and testing of universal joint 6. Production process and test