A new and distinct variety of peach tree which is somewhat similar to the Island King peach tree from it is a sport bud from which it is distinguished by producing a later ripening fruit approximately six to eight days after the fruit produced by the Island King peach tree. The foreign material removing member and the seal member are mounted to the ball screw shaft, at each of both the axial ends of the nut, while being overlapped to each other in a state that inner peripheral portions of the foreign material removing member and the seal member contact an outer peripheral surface of the ball screw shaft and the ball rolling groove thereof. The shock absorbing safety floor compresses to absorb the energy. The system also comprises a cavity in the body and accessible through the aperture and configured to receive the container. The metal plate includes a first portion in contact with the bonding pad of the second semiconductor chip, a second portion extended from a short side of the first portion to the lead wiring, and a third portion extended from a long side of the first portion to the lead wiring. The method includes forming a protrusion having a tapered portion on the annular plate, and inserting a punch including a first portion having a larger diameter than an inner diameter of a tip end of the tapered portion from the tip end side into the protrusion to expand the tip end of the tapered portion.