China National Standards

China 4：Basic GB Standards List

  •  China "4：Basic" GB Standards List:
    • Standard  Code Standard Title Standard Class Order
    GB/T 2889.4-2011 Plain bearings - Terms, definitions，classification and symbols - Part 4：Basic symbols
    滑动轴承 术语、定义和分类 第4部分：基本符号    		 China National Standards
    4：Basic
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