China National Standards

China alloys—Black GB Standards List

  •  China "alloys—Black" GB Standards List:
    • Standard  Code Standard Title Standard Class Order
    GB/T 31317-2014 Corrosion of metals and alloys—Black box exposure test method
    金属和合金的腐蚀 黑箱暴露试验方法    		 China National Standards
    alloys—Black
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