China National Standards

China Normal diameters ventilation GB Standards List

  •  China "Normal diameters ventilation" GB Standards List:
    • Standard  Code Standard Title Standard Class Order
    GB/T 1560-1979 Normal diameters for ventilation pipeline and accessories for ships metric series
    船用通风系统管路和附件的公称通径    		 China National Standards
    Normal diameters ventilation
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