A CD label applicator kit including a case, a support device and an applicator tool. Prior to the rack forging process, a blank pipe is subjected to a process for obtaining an adjustment of a cross-sectional shape of the blank pipe. The modulation circuit also has a modulation mode in which the first state defines a normal state and the second state defines an operative state. The probe tends to have deposits from the exhaust gas accumulate on the inner walls of the probe.