... resisting flame propagation, and in exhaling low smoke, fog, toxic gas during the burning.3. Type & Name TypeNameWDZ-DCYJ (EN)Low-smoke, halogen-free, flame-retardant, non-sheath ... cable used for railway vehicleWDZ-DCYJF (EN)Low-smoke, halogen-free, flame-retardant, sheath cable used for railway ...