7×19 乙烯基涂层电缆不锈钢 302/304 型直径部件编号规格分钟断裂强度外套颜色每 100′约重.1250 – .1875SC1257902商业1,760清晰3.9.1562 – .2187SC1567902商业2,400清晰5.5.1562 – .2187SC1567940商业2,400白色6.8.1875 – .2500SC1887902商业3,700清晰7.8.1875 – .2500SC1887901商业3,700白色8.0.2500 – .3125SC2507901商业6,400清晰12.5.2500 – .3750SC2507902商业6,400清晰14.8