
Steel For The Reinforcement Of Concrete Weldable Ribbed Reinforcing Steel B 500 - Technical Delivery Condition For Bars, Coils And Welded Fabric (pren 10 080)
出版:British Standards Institution

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Steel For The Reinforcement Of Concrete Weldable Ribbed Reinforcing Steel B 500 - Technical Delivery Condition For Bars, Coils And Welded Fabric (pren 10 080)
出版:British Standards Institution
专家解读视频