China National Standards

China concrete solid brick GB Standards List

  •  China "concrete solid brick" GB Standards List:
    • Standard  Code Standard Title Standard Class Order
    GB/T 21144-2023 concrete solid brick {译}
    混凝土实心砖    		 China National Standards
    concrete solid brick
    English PDF
    GB/T 21144-2007 Solid concrete brick
    混凝土实心砖    		 China National Standards
    concrete solid brick
    English PDF

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