China National Standards

China Steels Determination verification GB Standards List

  •  China "Steels Determination verification" GB Standards List:
    • Standard  Code Standard Title Standard Class Order
    GB/T 9450-2005 Steels-Determination and verification of the depth of carburized and hardened cases
    钢件渗碳淬火硬化层深度的测定和校核    		 China National Standards
    Steels Determination verification
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