DIN EN 50064/A1-1995
充气高压开关设备和控制装置用精锻铝和铝合金外壳; DIN VDE 0670-803 (VDE 0670 Teil 803) 修改件 A1; 德文版本 EN 50064:1989/A1:1993
Wrought aluminium and aluminium alloy enclosures for gas-filled high-voltage switchgear and controlgear; Amendment A1 to DIN VDE 0670-803 (VDE 0670 Teil 803):1991-05; German version EN 50064:1989/A1:1993