Disclosed is a resin pipe with a mouthpiece comprising: a mouthpiece; and a resin pipe of which one end is joined to the mouthpiece, wherein the one end is disposed in the mouthpiece, and an outer peripheral surface of the one end is joined to an inner peripheral surface of the mouthpiece by fusion. The bidirectional drive includes a drive lever which can be rotated about a drive axis, starting from an initial position, in the one or the other direction. Also provided are a method for fabricating the storage media as well as an apparatus and method for reading the data stored on the storage media. The positioning-board is elastic, is mounted in the connecting track and has two rail-bars and a positioning-rack. Furthermore, generating the null data packet includes generating a null data packet SIG field. Mechanical lock can rotationally affix the inner bowl to the housing to circumferentially position a pulley at the left or right edge of the sanding machine or at the front end of the sanding machine.