DIN EN 4537-2:2014 航空航天系列. 带自润滑衬料提升载荷的耐腐蚀钢制有法兰的套筒. 第2部分: 尺寸与载荷. 英制系列; 德文和英文版本EN 4537-2-2009
Aerospace series - Bushes, flanged in corrosion-resisting steel with self-lubricating liner, elevated load - Part 2: Dimensions and loads - Inch series; German and English version EN 4537-2:2009