- [帮助] 资料论坛新手必读! (36300篇回复)
- [帮助] 资料论坛使用常见问题Q&A (990篇回复)
- [帮助] [公告]如何快速提高金币! (2418篇回复)
- [公告]【规范论坛发贴的公告】 (606篇回复)
- 新手必看,如何下载资料 (1067篇回复)
- ASTM 系列标准中文版本代购 (227篇回复)
- [帮助] 如何通过推广获得金币 (436篇回复)
- 论坛举报专用帖 (1232篇回复)
- 标准文献版本适用状态反馈专用帖 (485篇回复)
- SAE J400_2002EN 涂层抗石击 (4篇回复)
- SAE AMS 4219F-2010 Aluminum Alloy Castings 7.0Si - 0.55Mg (8篇回复)
- SAE AMS 5732J-2006 Steel, Corrosion and Heat Resistant, Bars, Wire, Forgings, (2篇回复)
- SAE AMS 2269F-2006 成品化学分析偏差 (2篇回复)
- SAE J1453-3-2009 Specification for O-Ring (2篇回复)
- AMS2700E 中文标准 (3篇回复)
- SAE AMS 2700E (15篇回复)
- SAE AMS 2418H-2011 Plating, Copper (2篇回复)
- SAE-AS-568A(O型圈的美国标准) (31篇回复)
- SAE AS568F-2020 O-形圈宇航尺寸标准 (3篇回复)
- SAE J1926-1 - 2010 液压螺纹标准 (11篇回复)