描述：聚氨酯同步带/齿背加PVC花纹/RPP14M/节距14mm
价格：￥0.00
描述：聚氨酯同步带/齿背加PVC花纹/RPP5M/节距5mm
描述：聚氨酯同步带/齿背加PVC花纹/RPP8M/节距8mm
