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ASTM B564 legeert 825/de Flens van UNS NO8825/van NS142 WN rf2022-08-18 15:16:16 |
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ASTM A462 LEGEERT 8367 Hete Onderdompeling die Flens WNRF galvaniseren2022-05-20 17:22:11 |
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ASME SA266 Gr.2N Warmtewisselaar Tube Sheet2025-07-08 11:48:18 |