波型彈簧華司
BN 771
Standard
DIN 128 B (Standard withdrawn)
~UNI 8839 B
~ČSN 021731
Additional information
We recommend DIN 128 A (curved spring lock washers) for new construction: BN 768 / BN 769 / BN 770
Features
| 材質 |
材質
彈簧鋼
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| 表面處理 |
表面處理
機械鍍鋅
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