Road roller,Roller screw,Bicycle rollers,Roller mill. LATHE CUTTERS. Sintered carbide,ceramic and diamond cutters, ... METAL SHEETS. Zirconium dioxide,HY-80,Vanadium. STEEL RODS. Carbon steel,Threaded rod,Ferrocerium,Indium. LOCOMOTIVES. A locomotive or engine is a rail transport vehicle that provides the motive power for a train.