China National Standards

China extrusions—General GB Standards List

  •  China "extrusions—General" GB Standards List:
    • Standard  Code Standard Title Standard Class Order
    GB/T 33220-2016 Copper-beryllium alloy forgings and extrusions—General specification
    铜铍合金锻件和挤压件 通用技术条件    		 China National Standards
    extrusions—General
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