According to the color scheme, set the line color and fill pattern color of the bridge respectively.

After the operation is completed, the bridge will be colored, but in real mode, only the line color will appear, and no color will appear in the exported navisworks.

Find the project parameters in the Management tab, click Add, set the parameter data and category in the pop-up dialog box, and click OK to finish the setting.

Return to the 3D view and select the bridge. At this time, the newly added bridge material parameters will appear in the bridge and bridge fittings. Create the materials of high-pressure bridge, low-pressure bridge and fire-fighting bridge respectively, and give them to the corresponding bridges. The exported NWC will be displayed in color after setting.