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Barras redondas forjadas ASTM AISI 4340 /1.6511/ Sncm4392023-12-08 10:49:10 |
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ASTM A276 A479 304 barra redonda de 316 Ss2019-04-01 09:49:59 |
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20CrMnTiH barra de aço de aço de liga da composição quimica ASTM AISI SAE86202020-07-13 17:40:34 |