(Fe), 銅 (Cu), 碳 (C), 鎳 (Ni), 鉬 (Mo), 錳 (Mn), 鉻 (Cr), 錫 (Sn). MPIF Standard 35 (美規). F-0000, 6.1 - 6.7, HRF 40-60, 120-170, 90-120, 4-8, 250-340 ...
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