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Pengaruh Treatment Cryogenic Terhadap Nilai Kekerasan dan Struktur Mikro Baut…
Heat treatment of petrofer oil quenching harderning in the tempering process is used to increase the hardness value of S45C steel. PT Instatama conducts heat treatment of petrofer oil harderning quenching in order to produce high quality bolts. Heat treatment process on a large scale carried out at PT. Insastama, there are problems, namely the difference between the inner hardness value and the…
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- 019 MSN2020 WIB p
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