 |
| |||
| lock washer; serrated lock washer; star washer; tooth lock washer; toothed lock washer; spring washer | |||
| positive pattern; spring lock washer | |||
|
rondella elastica : 5 短语, 1 学科 |
| 材料科学 | 5 |
|
| |||
| lock washer; serrated lock washer; star washer; tooth lock washer; toothed lock washer; spring washer | |||
| positive pattern; spring lock washer | |||
|
rondella elastica : 5 短语, 1 学科 |
| 材料科学 | 5 |