Awọn ohun elo oriṣiriṣi ti awọn ọpa fifun da lori awọn ọpa fifun funrararẹ, eyiti o le ṣe ti irin manganese, irin igbekale martensitic (irin martensitic), irin chrome, tabi awọn akojọpọ matrix irin (MMC, gẹgẹbi seramiki).Awọn MMC jẹ ti ọpọlọpọ awọn iru irin ati awọn iru cera pataki…
Ka siwaju