پیوند ها
استاندارد ASTM A 503 در خصوص انجام تست آلتراسونیک بر روی شفت های آهنگری Forged Cracking Shafts Standard Specification forUltrasonic Examination of Forged Crankshafts Scope1.1 This is an acceptance specification for the ultrasonicinspection of forged steel crankshafts having main bearing journals or crankpins 4 in. [100 mm] or larger in diameter.1.2 This specification covers the testing equipment required ...