MẶT BÍCH, WN, 4IN, SCH10S, 150#, ASTM A182 GRADE F304/F304L DUAL GRADE, ASME B16.5, RF
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| Mặt bích, WN, 4 inch, SCH10S, 150#, ASTM A182, F304/F304L, Cấp độ kép, ASME B16.5, RF |
| Mặt bích, WN, 4 inch, SCH10S, 150#, ASTM A182, F304/F304L, Cấp độ kép, ASME B16.5, RF
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