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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…
Overview ISO 6624-4:2016 - "Internal combustion engines - Piston rings - Part 4: Half keystone rings made of steel" specifies the essential dimensional features and common characteristics of steel ha…
Overview ISO 6624-1:2017 - "Internal combustion engines - Piston rings - Part 1: Keystone rings made of cast iron" specifies the essential dimensional features and designation rules for keystone pist…
Overview ISO 6624-2:2016 - Internal combustion engines - Piston rings - Part 2: Half keystone rings made of cast iron specifies the essential dimensional features and related characteristics for half…
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…