03:11
Bell rumah terbaik
01:20
P Number pada material piping | Welding Inspector
01:10
kucing british lucu di pagi hari
09:07
Welding Inspector dan tanggung jawabnya
02:08
Alat pelindung diri QC Inspector
10:50
Menjadi QC Inspector di proyek
05:57
Pengertian QA dan QC
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Sharing knowledge and activities of quality control, quality control and engineer
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