male thread reducing elbow的意思|示意
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英 / /
外螺纹减径弯头
male thread reducing elbow的网络常见释义
异径外丝弯头 ... 异径弯头(管件) reducing bend,reducing elbow 异径外丝弯头 male thread reducing elbow 异径内丝弯头 female thread reducing elbow ...