https://stuffworking.com/material-science-mcq-2/ Know The Basic Sun, 13 Sep 2020 07:19:59 +0000 hourly 1 https://wordpress.org/?v=6.1 https://stuffworking.com/material-science-mcq-2/#comment-16066 Tue, 07 Jul 2020 07:23:31 +0000 http://stuffworking.com/?p=1353#comment-16066 How Tempering is the answer for the question “The heat treatment process used for softening hardened steel is”?? Please explain.

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