I ka hoʻomaʻamaʻa ʻana, ua hōʻoia ʻia nā mea like ʻole no ka hana ʻana i nā pahu puhi. Loaʻa kēia mau mea i nā kila manganese, nā kila me ka hale martensitic (i ʻōlelo ʻia ma lalo nei he mau kila martensitic), nā kila chrome a me nā Metal Matrix Composites (MMC, egceramic), kahi o nā kila like ʻole ...
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