The invention relates to a gasket part for a pump to be used in conjunction with a bearing part of the pump, through which there is arranged a drive shaft. The improved putter includes a putter head, a shaft and a handle. Therefore, after the whole of the transfer charge 36 is burnt, large ignition energy is discharged from the flame-transferring holes 46 into the second combustion chamber 25. A crimping process is also disclosed for further strengthening the electrode and increasing the operational life span thereof. A method of manufacturing a display device includes the step of preparing a member having, on a separation layer, a semiconductor film having a first region with a switching element and a second region with a peripheral circuit, the step of forming an image display portion on the first region, and the separation step of separating the first and second regions from the member. The holder further includes a stem connected to the seal and a sample retainer connected to the stem for retaining solids in the retainer, the sample retainer including a perforated wall region for allowing fluids to pass through the wall but preventing the solid phase sample from passing through the wall.