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Subject Item
n11:
clgo:product
clgr:Portland_cement
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clgr:Loma_Negra
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clgr:Portland_cement
Subject Item
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Portland cement
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Portland cement
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Type II 32.5R and Type II 42.5R cement Portland_cement#Environmental_effects portland cement Portland Portland render Portland Cement Specification for Portland Cement cast-in-place Portland-based Portland Cement Works ordinary Portland cement cement production cement works Portland limestone cement modern concrete Portland_cement#General portland general purpose concrete General Portland Cement Portland-type cements ASTM C150 OPC development of modern cement
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clgr:Hrazdan_Cement
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clgr:Ararat_Cement
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clgr:Phoenix_Cement_Company
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