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YB(T)26—86回火轮胎胎圈钢丝规定:钢丝弯曲试验的弯曲角度为90°,见图1。目前,国内尚无测量90°弯曲值的试验机。为了测量90°弯曲值,我们将国产WJ—1/0.3
YB (T) 26-86 Tempering Wheels Bead wire provisions: Bending test wire bending angle of 90 °, shown in Figure 1. At present, there is no test machine measuring 90 ° bending value in China. In order to measure the 90 ° bending value, we will make WJ-1 / 0.3