Production Description:
Round flat washers, spring washers, square washers, tapper washer, tooth washer, speical washer as clients' design. DIN125, DIN9021, USS, SAE, F436, DIN126, DIN433, DIN440, DIN1440, DIN7349, DIN7989, NFE25513, NFE25514, BS4320, BS3410, USS/SAE, DIN6916DIN127, DIN7980, DIN137, DIN6797, DIN6798, DIN435, DIN436