"Rectangular Lock " CNS Standards List| Fire resistance | Method Test | Robotics − | Symbols Electric | Phosphorus, Red | Method Determining | Hexagon Socket | Methods Testing | |
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CNS 158
2020 Edition Rectangular Lock Washers (for Metric Bolts and Nuts: M3 - M52) 長方形防鬆墊圈(用於螺釘及螺帽M3至M52) |
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