GB/T 12972.4-2008 矿用橡套软电缆第4部分:额定电压1.9/3.3 kV及以下采煤机金属屏蔽软电缆
Flexible rubber-sheathed cables for mining purposesPart 4: Flexible coalcutter cables with individual metallic screensfor rated voltages up to 1.9/3.3 kV
GB/T 12972.4-2008 矿用橡套软电缆第4部分:额定电压1.9/3.3 kV及以下采煤机金属屏蔽软电缆
全屏查看
系统提示