cold rolled ribbed steel wires and bars 中文意思是什麼
cold rolled ribbed steel wires and bars
解釋
標準:冷軋帶肋鋼筋-
Cold rolled ribbed steel wires and bars
冷軋帶肋鋼筋 -
Technical specification for co ? ? ncrete structures with cold - rolled ribbed steel wires and bars
冷軋帶肋鋼筋混凝土結構技術規程
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