Bead wire for tire including loading radial tire, bearing radial tire, passenger car tire, truck tire, motorcycle tire and bicycle tire: Dia.:0.78mm～ 3.00mm etc. According to different techniques, there are tempered bead wire and cold drawn bead wire. According to different intensities, there are ordinary intensity bead wire and high intensity bead wire. 胎圈钢丝，通常称为回火胎圈钢丝，是一种镀青铜、紫铜或黄铜用做加强轮胎 胎圈的钢丝。由胎圈钢丝和隔离胶编制成的钢丝圈使外胎紧密地稳固在轮辋上， 在行驶中承受拉伸，压缩，扭转及离心等作用力。这种骨架材料用于各种类型的 轮胎，包括乘用车胎，卡车胎，摩托车胎和自行车胎。目前，轮胎工业对胎圈钢 丝的需求越来越多，质量要求越来越高。对胎圈钢丝的基本性能要求指标：抗拉 强度，破断伸长率，屈服强度，平整度。
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