短语词组短語bead heel width 胎踵寬度mm Bead band width mm 鋼絲簾佈寬mm Bead pointing width mm 鋼絲圈定位寬度uneven bead width 胎圈寬窄不一back -bead width 背麪熔寬weld bead width 熔寬o Bead width 胎圈寬度 返回 bead width