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ASTM de U-bochtbuis van TP321H TP321 SA213 ASME A213 TP347H 3/4“2023-06-08 14:17:20 |
De Elleboog LR B16.9 van ASTM B366 wphc276-s DN100 Sch10s 90Deg2021-12-10 11:29:47 |