求DIN 15112

easylife

需要了解弹簧平衡器的相关知识，哪个大侠能提供如下标准，非常感谢
8 [9 h" T# z- N) E2 h- M9 }3 SDIN 15112
# u. \0 t! i2 G; PSpring pulls; safety requirements, testing
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6 R0 Z/ f9 {1 x( C" h- BDeutsches Institut Fur Normung E.V. (German National Standard) / 01-May-1979 / 3 pages
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