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Kutengera mwayi wazokwanira zamkati mwanyumba kuphatikiza kakulidwe kazithunzi, kusungunula, chithandizo cha kutentha, kukonza makina & kusonkhanitsa, WJ monyadira imagwiritsa ntchito Full Process Quality Control pakupanga konse, kuwonetsetsa kuti zobvala zonse zophwanyidwa, magawo & zigawo zikuluzikulu zikutsatiridwa ndi 100%.