Njira Yoyendera Msonkhano woyamba wachitsanzo Ndikofunika kutumiza milingo yonse yabwino kwa ogwira ntchito onse Mtengo wa IQC Ulamuliro Wabwino Wobwera Mtengo wa IPQC InPut Process Quality Control OQC Ulamuliro Wabwino Wotuluka