When a steering column contracts in order to absorb shock, interference between a column cover and a lock apparatus is suppressed, and a shock-absorbing stroke of the steering column is obtained. This water-soluble non-phosphorus lubricating agent for plastic working includes an inorganic solid lubricant as component A, a wax as component B, and a water-soluble inorganic metal salt as component C, wherein the mass ratio of solid content for component A to solid content for component B is 0. The output of at least one of these services can be pushed to and displayed in a graphical user interface. Alternatively, if the first battery charge is above a third given level the first battery charges the second battery if the second battery is not fully charged. The backrest assembly may include at least one swivel structure and two handle bars. The semiconductor device comprises a semiconductor chip having an upper electrode and a lower electrode formed thereon; a package base bonded to the lower electrode on the semiconductor chip; and a metallic strap having first and second ends bonded through solders to the upper electrode on the semiconductor chip and a package lead.