Flat washers without chamfer series M (medium)
BN 20229
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規範
~NFE 25-513 M (Standard withdrawn)
~DIN 126
~ČSN 021721
產品資訊
| Material |
Material
Steel
|
| Surface |
Surface
zinc plated with thick layer passivation
|
| Hardness |
Hardness
100 HV
|