These are plated bobbins. These high quality bobbins will fit for industrial sewing machines using large capacity sewing hook including For Juki : DNU-241, DNU-1541, DNU-1541S, DSU-145, LS-246. 10pcs Carburetor Main Jet Set Fit Keihin PWK PE OKO KOSO 130/132/135/138/140-152.
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