Diesel Equipment Plant, founded in 1965 in divinity marine diesel engine fuel injectors 40 years of the nozzle, plunger, delivery valve, pump, injection valve and cams has been professionally produced, Specifically, in 1992, Ulsan Hyundai Heavy Industries Co., Ltd. received the designated supplier of medium-sized diesel engines using fuel minute valves, pumps, hops, and exhaust cams and fuel development success in the Genuine Parts Creed engine production, and delivery was Heartman Co., Ltd. was established in 1999 with the current domestic shipping and marine companies, as well as Europe, Asia, North America, South America, and expanding exports and is planning to more in the future.