The system provides first and second sensor assemblies and processor that work in cooperation to detect flaws in welded tubulars. Also disclosed is a molded body obtained from such a thermoplastic resin composition, which is improved in fluidity, chemical resistance, impact resistance and flame retardancy. Thus, the invention provides control of electroplating processes based on plating bath composition data. The first value and the second value each have N bits of precision. 7 mm, and a shrinkage ratio S1 in a molding flow direction of the polycarbonate thin molded article upon its being left under an atmosphere of 170\xb0 C. The vacuum source includes a vacuum pump connected to a brake boost device that provides power braking to the brake system of the vehicle.