China National Standards

China Surface treatment fasteners GB Standards List

  •  China "Surface treatment fasteners" GB Standards List:
    • Standard  Code Standard Title Standard Class Order
    GB/T 5267.5-2024 Surface treatment of fasteners - Part 5: Thermal diffusion zinc coating {译}
    紧固件表面处理-第5部分：热扩散渗锌层    		 China National Standards
    Surface treatment fasteners
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