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ASTM A403 WP317 L-S Concentric Reducer Buttweld che misura ANSI B16.92023-08-02 17:32:21 |
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FLANGIA ASTM A182/ASME SA182 F904L UNS N08904 SORF DI ACCIAIO INOSSIDABILE2022-01-04 16:26:26 |