The principal object of the present invention is to produce a face to face plate type swivel with an interposed frictionless bearing material at lower cost without {TAIL ~ any corresponding loss} in simplicity of design, ease of assembly or {HEAD ~ strength} of structure and to improve the ease of operation and ease of maintenance 
The principal object of the present invention is to produce a face to face plate type swivel with an interposed frictionless bearing material at lower cost without { TAIL ~ any corresponding loss } in simplicity of design , ease of assembly or { HEAD ~ strength } of structure and to improve the ease of operation and ease of maintenance
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