China National Standards

China instruments—Specification GB Standards List

  •  China "instruments—Specification" GB Standards List:
    • Standard  Code Standard Title Standard Class Order
    GB/T 39023-2020 Writing and marking instruments—Specification for caps to reduce the risk of asphyxiation
    书写和记号工具 降低窒息风险的笔套规范    		 China National Standards
    instruments—Specification
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