Lock washer: This kind of spring washer is vsk washer. It is made according to the standard DIN127, , we can produce from the size M2-M42, the Material of it on the pic is steel, , the finishment of it is dacromet, there is striation on the surface of the washer. The material can be stainless lteel, steel or copper. We also can make DIN128, DIN7980, ASME, JIS and other standards or unstandards.
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