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BS7211电缆阻燃防火测试

 BS7211电缆阻燃防火测试 BS 7211:1998 Electric cables-Thermosetting insulated, non-armoured cables for voltages up to and including 450/750V, for electric power, lighting and internal wiring and havi

2013-11-03 Comments:0BS7211电缆阻燃防火测试