The utility model has simple structure and overcomes the problem of wheel rim on the tyre with small tyre diameter.

本实用新型结构简单，克服了小轮径轮胎上瓦圈的困难。

youdao

The utility model has simple structure and overcomes the problem of wheel rim on the tyre with small tyre diameter.

本实用新型结构简单，克服了小轮径轮胎上瓦圈的困难。

youdao