| |||
| positive pattern; spring lock washer | |||
| lock washer; serrated lock washer; star washer; tooth lock washer; toothed lock washer; spring washer | |||
|
rondella elastica : 5 phrases in 1 subject |
| Materials science | 5 |
| |||
| positive pattern; spring lock washer | |||
| lock washer; serrated lock washer; star washer; tooth lock washer; toothed lock washer; spring washer | |||
|
rondella elastica : 5 phrases in 1 subject |
| Materials science | 5 |