Detailed Product Description CBZ series marine explosion-proof axial flow fans1. PrefaceMarine ... ,Weight:78~1068KG,380V/440V,50Hz/60Hz,CBZ series explosion-proof axial flow fans for marine use ... corrupt air supply or extracition.Theses explosion-proof fan series are best suited to pumping out gas mixtures ... other compartments of shipping and corresponding place of land's.AC 50HZ,380V or 60HZ,440V type ...