The invention provides a high-density multilayer printed wiring board and a method for manufacturing a multilayer printed wiring board having high-density wiring that is formed easily. Accordingly, vibrations of the support member can be properly restrained. Tightening the skirt drives its inner edge against the bearing which in turn abuts the escutcheon. A pair of coupling transistors includes a first transistor and a second transistor. For the connection between a piston rod and the sliding plate, the machine further comprises a first driving rotational surface linked to the piston rod and a corresponding second driving rotational surface linked to the sliding plate, a clearance being left between said first driving rotational surface and said second driving rotational surface and said surfaces being adjacent.