China National Standards

China information， GB Standards List

  •  China "information，" GB Standards List:
    • Standard  Code Standard Title Standard Class Order
    GB/T 16492-1996 Optics and optical instruments -- Environmental requirements--General information， definitions，climatic zones and their parameters
    光学和光学仪器 环境要求 总则、定义、气候带及其参数    		 China National Standards
    information，
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