STX Engine Business IR Room PR Room R&D Support About STX Engine - Overview - History - Vision - Management Chairman Visiting STX Engine Affiliated Companies Social Contribution - Social Welfare - Culture and Sports - Volunteer Work Environmental Management - Environmental   Management Policy - Certification Marine Diesel Engine - 4Stroke Gen-set Engines - Medium Speed 4-st    Propulsion Engines - Low Speed 2-st Engines - Cummins High Speed Engines Military Diesel Engine - For marine purposes - For Army projects Electronic Communication Equipment - Underwater acoustics - Electric signal detection - Tactic communication - Battle System - Navigation and Communication - Ship Automation - Compromising Trade Power Plant - Diesel Power Plant - Gas Power Plant Engine Parts Financial Performance IR Materials STX Engine News Digital Brochure STX NEWS AD - PR Film - TV CF - Print Status of R&D R&D Area - Engine Technology   Research Center - Electronic   Communication   Research Center Service Structure Overhaul Service Quality Management - TQI - Certificate - Quality Policy Part Agency Service Agency KOLAS