flat fishplate 中文意思是什麼
flat fishplate
解釋
平面魚尾板-
Iron and steel products. hod - rolled. 46 kg m flat bottom ralway rail and fishplate
鋼鐵產品.熱軋制.每米46kg重平底鋼軌和魚尾板 -
Iron and steel products. hod - rolled. 55 kg m flat bottom railway rail and fishplate
鋼鐵產品.熱軋制.每米55kg重平底鋼軌和魚尾板
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