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2013年3月28日,斗山工程机械在北京举行了主题为“X使命,格局重塑”的新产品暨品牌战略发布会,推出涵盖挖掘机和装载机在内的DX和DL两个系列7款产品,其中全新亮相的DX系列全线升级产品专为中国市场研发。7款新品分别为针对矿山应用的42t级DX420LC型挖掘机和50t级DX500LC型挖掘机,新一代DX80型小型挖掘机,5t级高端机型DL507型装载机和灵敏高效的DL501型装载机,以及韩国原装进口新型DL420A/DL550
On March 28, 2013, Doosan Infracore held a new product and brand strategy conference on “X Mission and Reshaping Pattern” in Beijing with the launch of two DX and DL models covering excavators and loaders Series of 7 products, including the newly unveiled DX series full range of upgrades specifically for the Chinese market research and development. The seven new models are the 42t Class DX420LC and 50t DX500LC Excavators, the New Generation DX80 Mini Excavator, the 5t Advanced DL507 Loader and the agile and efficient DL501 Loader for mining applications, respectively South Korea imported new DL420A / DL550