The best core consists of a bundle of soft iron wires held together by a wrapping of cloth, cord or other binder.
最好的核心组成举行的布包裹，绳索或其他粘合剂在一起的软铁丝捆绑。
The main factors affecting lay length of core strand of steel cord are draught speed, rotating speed of revolver, distance of laying, twist direction.
影响帘线芯股捻距大小的主要因素为牵引线速度、旋转体转速、加捻段的距离和捻向。
Power cord using silicon rubber prevent hardening of the three core design, long service life.
电源线采用矽胶线防硬化三芯线设计，使用寿命超长。
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