This proposal relates to a jumping twist that also serves as a disassembly twist by the applicant of the present application (patent application No. 96-32926 Utility Model Registration Application Nos. 96-24328, 96-33046). 5) (16) (19) is divided into three parts, which is designed to facilitate disassembly and assembly. It is not only convenient to handle, but also can reduce the packaging during transportation, thereby reducing the packaging cost. It is.
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