Model Derived: CB100, Compact-100, British 321-TypeBridge deck net width: 4.2mMaximum Free Span length: 51MPanel Dimension: 3000MMX1400MM(Holes center distance)
D-Type Big Span Steel BridgeModel Alias: CD450;CD;450Std. Double lanes: Bridge deck net width: 7.35m. Maximum Free Span length: 91.44mD-bridge is the patent of Great Wall; It was invited from Germany and has advantage in the long-span and big loading comp