6X7+1系列，钢线由6股7根微细丝和一股钢芯组成，外面尼龙膜附着力好，钢丝抗拉力强,柔韧好，可接断线报警器，是用于防盗安装的最佳配置。直径提供：2.0-2.3-2.5-3.0mm薄皮钢丝的选取。

6x7 + 1 series, steel wire is composed of 6 strands of 7 micro filaments and a strand of steel core, with good adhesion of nylon film outside, strong tensile resistance of steel wire, good flexibility, and can be connected to the broken wire alarm, which is the best configuration for anti-theft installation. Diameter provision: selection of 2.0-2.3-2.5-3.0mm thin skin steel wire.