China National Standards

China 90°Countersinks GB Standards List

  •  China "90°Countersinks" GB Standards List:
    • Standard  Code Standard Title Standard Class Order
    GB/T 4265-2004 90°Countersinks with pilots--Technical requirements
    带导柱90°锥面锪钻 技术条件    		 China National Standards
    90°Countersinks
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