Ib Sab Zipper Square Bott
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Pob txha zipper hnab tseem hu ua invisible zipper bag
Pob txha zipper hnab yog dav siv nyob rau hauv kev lag luam ntim, ntim tshuaj txhua hnub, ntim khoom noj, tshuaj, kev noj qab haus huv, electronics, aerospace, science thiab technology, tub rog kev lag luam thiab lwm yam kev lag luam;