indoor and outdoor rubber-covered wire optical cable 1 core 2 core telecom grade optical fiber cable butterfly single mode rubber-covered wire optical fiber service wire double core 室内外皮线光缆1芯2芯电信级光纤线蝶形单模皮线光纤入户线双芯

indoor rubber-covered wire 1 core 2 steel wire white indoor rubber-covered wire 1 core 2 steel wire black indoor rubber-covered wire 2 core 2 steel wire white indoor rubber-covered wire 2 core 2 steel wire black indoor parallel cable 2 core 4 steel wire white outdoor rubber-covered wire 1 core 3 steel wire black outdoor rubber-covered wire 2-core 3-wire black outdoor rubber-covered wire 1 core frp non-metallic black outdoor rubber-covered wire 2-core frp non-metallic black

100 meters 500 meters 1000 m 2,000 meters