Unverified80% confidenceFactTime unknown
钢丝轴承款绳体通常为钢丝外包PVC，直径约2.5-4mm，转速快但不适合初学；棉绳直径通常5-8mm更粗更慢，起到缓冲绊绳作用
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80%
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Long-term
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Unverified钢丝绳越细越快但越易缠绕/抽伤且易磨损断裂，粗绳/珠节绳更耐用抗缠绕但速度慢，初学者选2.5-4mm直径为宜87% similarUnverifiedPVC速度绳绳径一般2.5-4mm，绳径越细速度越快但越易缠绕，儿童入门选4-5mm粗绳更好控82% similarUnverified钢丝绳式限位器常见规格为绳长10-20cm可调，通过卡珠或滑扣限定开口，钢丝多为2-4mm不锈钢，单端螺丝或3M胶固定于窗框与窗扇81% similarUnverified钢丝绳限位锁的钢丝直径普遍在2-4mm，4mm加粗钢丝绳的抗拉强度显著高于2mm，高层建议选≥3mm并带塑胶包裹防割手81% similarUnverified钢丝绳限位锁的常见规格为钢丝绳直径2-4mm，长度多在20-30cm可调，包胶304不锈钢材质在户外抗锈蚀表现优于普通镀锌钢丝81% similar
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