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Overview ISO 6624-3:2017 - "Internal combustion engines - Piston rings - Part 3: Keystone rings made of steel" specifies the essential dimensional features and designation rules for steel keystone pi…
1 Scope This document specifies the essential dimensional features of keystone rings made of steel, types T, TB, TBA, TM, K, KB, KBA and KM, having diameters from 70 mm up to and including 160 mm, us…