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cb-100n

  1. Member Introductions
    Hi, i have some piston rings but couldn't figure it out what these rings are for (no clear information in google); Part numbers: 13010-230-00 13030-230-00 13040-230-00 13050-230-00 by now, i only know that the 4th digits refers to the oversize code (STD, OS 50, OS 75, OS 100) but i couldn't...
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