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倍受行业关注的《混凝土实心砖》GB/T21144-2007,日前经国家标准化委员会批准颁布,将于2008年6月1日起正式实施。
Much industry concern “concrete solid brick” GB / T21144-2007, recently approved by the National Standardization Committee promulgated, will be June 1, 2008 come into effect.