WIRE MATERIAL FOR PISTON RING AND PISTON RING PRODUCTION METHOD
Provided is a wire material of which a first side surface for forming an outer peripheral surface of a piston ring includes a tapered surface and a protruding surface. The protruding surface is divided into a first portion and a second portion by a first virtual surface which is an extension of the...
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Main Authors | , , |
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Format | Patent |
Language | English French Japanese |
Published |
04.11.2021
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Subjects | |
Online Access | Get full text |
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