China Classification Society BG21PTB00015_02 K-Thrust 600 AutoChief 600 propulsion control system K-Steering 600 AutoChief C20 propulsion control system Issued by China Classification Society Certificate type Type Approval Certificate Certificate no BG21PTB00015_02 Expiration date 07.01.2026 Document file BG21PTB00015_02.pdf Related file(s)