Introduction: The M300 Housing takes advantage of 0.8T electrolytic SECD-O steel and specific stamping to provide micro motor casings with 24.3 mm diameter and 12.4 mm size for trustworthy laptop computer https://thisarticlewasrepostedfr367912.dekaronwiki.com/2487312/technical_elements_of_precision_steel_stamping_for_notebook_motor_casings