I-UPN
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Ishaneli ye-U Beam C ye-Hot Rolled Carbon Eshisayo Esezingeni Elihle
Ithebula lamanje limelela izinga laseYurophuIziteshi ze-U (UPN, UNP),
Imininingwane, izakhiwo, kanye nobukhulu bemishayo ye-UPN, eyenziwe ngokwezindinganiso ezilandelayo:
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I-DIN 1026-1:2000
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I-NF A 45-202:1986
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I-EN 10279:2000- Ukubekezelelana
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EN 10163-3:2004– Isimo sobuso, Isigaba C, Isigaba Esingaphansi 1
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I-STN 42 5550
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I-ČTN 42 5550
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I-TDP: STN 42 0135
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