Material:stainless steel(A2/A3/A4),carbon steel,copper,brass etc.Surface:Plain ,HDG ,YZP ,black ,ZP(CR3+/CR6+) etc.Standard:DIN , SAE /USS, ISO, JIS , BS, NFE,etc.and Non-standard.Application:Mechanic ... ...
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Washers, stamping parts, bolts and nuts, spring washer, Jewelry, ring ...
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