6S , Six S, 1S Sort, 2S set in order, 3S shine, 4S standardise, 5S sustain, 6S safety, negi skills,
5:43
6S , Six S, 1S Sort, 2S set in order, 3S shine, 4S standardise, 5S sustain, 6S safety, negi skills,
424 viewsJan 16, 2022
YouTubeNegi Skills
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