TOTO

A structural member 10 includes a base material 100 formed of a polycrystalline material, and a protective film 200 covering a surface 110 of the base material 100. In a cross section obtained by cutting the base material 100 perpendicular to the surface 110, when an average value of cross-sectional areas of multiple crystal grains 150F exposed on the surface 110 among crystal grains 150 constituting the base material 100 is defined as a first cross-sectional area, and an average value of cross-sectional areas of multiple crystal grains 150B located deeper than the surface 110 among the crystal grains 150 constituting the base material 100 is defined as a second cross-sectional area, the first cross-sectional area is smaller than the second cross-sectional area in the structural member 10.

A toilet system (1) includes a flush toilet (2) of a wall-hung type; a flush-water tank apparatus (4) that is to be provided in a space behind a wall and that stores flush water to be supplied to the flush toilet (2); a frame unit (6) that supports the flush-water tank apparatus (4); and a warm-water washing toilet seat (8) that is to be placed on the flush toilet (2). The toilet system (1) further includes a water supply hose (12) configured to be connected at one end thereof to the flush-water tank apparatus (4) and to be connected at another end thereof to the warm-water washing toilet seat (8). A rear end portion (2a) of the flush toilet (2) has a through hole (46) that allows the water supply hose (12) to pass therethrough.

A wall-hung flush toilet includes a toilet main body, a tank device, a pump device, and a connection pipe. The toilet main body includes a bowl, a drain trap pipe line, and a storage part that is located below the bowl and stores a water storage tank of a tank device. When viewed in bottom-view, the water storage tank straddles a lowermost end part of the drain trap pipe line in a lateral direction. At least a part of the connection pipe and at least a part of the pump device are located inside a region of the drain trap when viewed in bottom-view.

According to one embodiment, a sanitary washing device for washing human private parts includes a nozzle configured to jet water toward the human private parts, and a protective electronic circuit configured to prohibit operation of at least part of the sanitary washing device when a component of the sanitary washing device fails. The protective electronic circuit includes a failure diagnosis part configured to diagnose a failure of a component of the protective electronic circuit. At least part of the operation related to the jetting in the sanitary washing device is prohibited when a failure of the component of the sanitary washing device is sensed by diagnosis using the failure diagnosis part.

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