One piece, injection-moldable, functionally polyhedral construction modules. With this arrangement, there can be provided a long member bending apparatus having a simple structure capable of bending a pipe member, a bar member, a strip member that has an asymmetric cross section, and the like. One application of the invention is in load trains equipped with means for preventing rollover or overturning. A slit that is a side-surface discharge port is configured so that gas is discharged along a curved surface on the outer surface of the urea solution injection nozzle in the same direction as the injection direction of the urea solution. In some cases, the fluorinated aromatic materials are perfluoroalkylated aromatic materials that may include perfluoropolyether substituents.