CBZ Marine Explosionis probatio Axialis Fluxus FanCBZ series explosionis axialis fluxus fans in usum marinum designatur et fabricatur secundum GB 11800-89 (Marine Explosio-probatio Axialis Flow Fans), et descriptio generalis et explosio-probatio instrumenti electrici GB3836- d. 83 Electrical apparatus for explosive atom-spheres and Regulations for the Construction and classification of Sea-going steel naves.