Abstract: A fluororesin composition containing a melt moldable fluororesin and a silica, wherein the fluororesin has 25 or more carbonyl group-containing functional groups per 106 main-chain carbon atoms; the silica is a spherical silica; and the fluororesin composition has a linear expansion coefficient of 100 ppm/° C. or lower. Also disclosed is a fluororesin sheet including the fluororesin composition, a laminate including a copper foil layer and a layer including the fluororesin composition and a substrate for circuits including a copper foil layer and a layer including the fluororesin composition.

Abstract: A specific-equipment management system is equipped with a question generator, a display unit and an input unit and manages a water heater. The water heater is equipment that requires human operation in the vicinity when used. The question generator generates question information. The question information is information regarding a question for specifying a specific-error. The “specific-error” is an error regarding the water heater and includes an error regarding the human operation. The display unit displays the question information. Response information is then inputted to the input unit by the user based on the question information displayed at the display unit. The response information is information regarding the state of the water heater or the state of the human operation. The question generator generates next question information based on the response information. The display unit then displays the next question information.