1. Inch series:
USS, SAE, type b washers, fender washers, u-bolt washer, dock washers.
2. MM series:
(1) Din125A, DIN120, DIN433, DIN436, DIN440, DIN552, DIN6340, DIN7349, DIN9021, NFE2553, and machine screw washer.
(2) Special washer & stampings.
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