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Summary: Block product marking: Mark in the order of product name (code ACB), strength level, bulk density level, specificatio[Read the full text]
Summary: There are six levels of volumetric density: B, B, B, B, and B There are seven strength levels: A, A, A, A A, and ALia[Read the full text]
Summary: The following standards contain provisions that constitute the provisions of this standard by reference in this stand[Read the full text]