Size ：M1.6 M2 M2.5 M3 M4 M5 M6 M8 M10 M12 M14 M16 M18 M20 M22 M24 M27 M30 M33 M36. A2 stainless steel penny washers,also known as repair and mudguard washers.It has good corrosion resistance, oxidation resistance, heat resistance, high strength and high toughness.
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