rubber ring

橡胶环，橡胶圈

1. 橡胶圈：Reflux 回流 | rubber ring 橡胶圈 | rubber seal 橡胶塞

2. 橡胶环：rubber covering 橡胶包皮 | rubber ring 橡胶环 | rubber-tyred 橡胶轮缘

3. 橡皮水封：Rubber bushing橡皮垫圈 | Rubber ring橡皮水封 | Screw螺丝

4. 橡皮圈：rubber ring packing 橡皮填密圈 | rubber ring 橡皮圈 | rubber seal 橡皮密封