中国电线

GUOBIAOSULIAOXIAN：60227 IEC52 (RVV) 300/300V，60227 IEC53 (RVV) 300/500V

GUOBIAOXIANGJIAOXIAN：60245 IEC 53(YZ) 300/500V，60245 IEC 57(YZW) 300/500V，60245 IEC 66(YCW) 450/750V