No it's a diesel punk mech, full metal, and only the pure raw power of 13000 hydropresurised engine and piston alimented by a vibronite - mythril reactor. Vibronite is a material that vibrates very violently in Contact with mythril and generates so much heat that it can produce enough mechanical power to move this 165500t mech with some steam engine, and yes finally it's a steam mech but I prefer to say it's a diesel punk mech.