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
% c5 a. ?6 d. T1 b2 VDIN 15112
& `! g+ g" w, n+ o; wSpring pulls; safety requirements, testing
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. c! f- B' i! y4 l* D: q) \# XDeutsches Institut Fur Normung E.V. (German National Standard) / 01-May-1979 / 3 pages
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