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2019년 10월 10일

AMS 6378, 4142H Modified, 130 ksi, Free Cutting

AMS 6378, 4142H Modified, 130 ksi, Free Cutting STEELMAX Steel Story   AMS 6378 규정은 130 ksi (896 MPa) 항복강도이면서 쾌삭성 원소 Selenium (Se)을 합금한, 4142H […]
AMS 6378, 4142H Modified, 130 ksi, Free Cutting
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