Abstract: A diesel engine exhaust gas filter [8] is manufactured by winding a belt-like wire mesh [1] knitted from a metal wire [2] into a swirl body while being extended in the longitudinal direction and compressing it in the widthwise direction in a molding die. [6].

Abstract: A diesel engine exhaust gas filter [8] is manufactured by winding a belt-like wire mesh [1] knitted from a metal wire [2] into a swirl body while being extended in the longitudinal direction and compressing it in the widthwise direction in a molding die. [6].

Abstract: An object is to provide a remote maintenance system which can present a client with an avoiding action against the occurrence of an abnormality in the future. It is structured by a data measuring part 180 which measures operation data of a maintenance-receiving equipment of a client and outputs it, a residual lifetime predicting part 50 which receives the operation data outputted from the data measuring part 180 via the Internet 1, makes a diagnosis of the maintenance-receiving equipment, and predicts a residual lifetime of the maintenance-receiving equipment or its part, and a notifying part 40 which writes the result of the residual lifetime prediction by the residual lifetime predicting part 50 to an electric mail and notifies it to the client via the Internet 1.