China National Standards

China Provision permissible errors Industry Standards English PDF List

  •  China "Provision permissible errors" Industry Standards English PDF List:
    • Standard  Code Standard Title Standard Class Order
    QB/T 1690-2004 Provision of permissible errors for measurement of precious metals adornment mass
    贵金属饰品质量测量允差的规定    		 China Light Industry Standards
    Provision permissible errors
    English PDF

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