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reinforced concrete▼◼◼◼[UK: ˌriːɪn.ˈfɔːstˈk.ɒn.kriːt] [US: ˌriːɪn.ˈfɔːstˈk.ɒn.kriːt]
ferroconcrete▼◼◻◻[UK: ˌfe.rəʊˈk.ɒŋ.kriːt] [US: ˌfero.ʊˈk.ɒŋ.kriːt]
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