Defect: Broken hole | non-woven storage
Cause: 1) frayed during back stitch; 2)recycled fabric, not brand new raw fabric material; 3)no inline inspection
Solution: 1) adjust needle height a little higher while back stitch; 2)use new raw fabric; 3) again every item MUST make inspection at least for several pcs from the beginning of first batch!
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Rework difficulty: * * * *
Rework collateral risk: * * * *
