沉头螺钉头部形状和测量 GB5279-85
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工业产品保证文件总则 GB\T14436-93
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数据的统计处理和解释测试结果的多重比较 GB\T10092-2009
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紧固件机械性能检查氢脆用预载荷试验平行支承面法 GB\T3098.17-2000
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米制密封螺纹 GB\T1415-2008
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钛及钛合金管材涡流探伤方法 GB\T12969.2-2007
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金属材料厚度等于或小于3mm薄板和薄带反复弯曲试验方法 GB\T235-1999
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紧固件六角产品的对边宽度 GB3104-82
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