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multi-strand, it can be assumed as a circular cross-section, an approximate measure the diameter of the rotation parameters: the introduction of sutures to increase the intensity and regularity of sewing parameters, with left, right hand points. simple distinction is single-handedly pinch suture does not move, another twist his hand hanging part, twist tight rotation direction is the line (L-line using the more common). twist : sutures and more from two or more shares to a shuangyashanbanlijiazhao.fqazp fiber strands twisted together Shuangyashan direction, twist the large increase in the strength, stability and correspondingly weakened

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