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Ten years of experience in the industry to build a variety of engineering machinery virtual simulation cooperative simulator, huge amounts of teaching courseware, disassembling and maintenance software, etc. Series of practical teaching system, widely used in engineering machinery application and maintenance, emergency rescue and emergency professional construction, railway transportation, oil mining, colleges and universities in areas such as military forces, its rich subject, functional, aesthetically pleasing, to provide users with real machine can't replace, quality service to create virtual simulation training and equipment.