2.54 mm kutalika

Ku Hien, Timapanga malo ogwirira ntchito osangalatsa, achilungamo komanso ogwirizana kwa ogwira ntchito onse. Tikukhulupirira kuti wogwira ntchito aliyense akhoza kudziposa yekha, kukulitsa luso laumwini ndi luso, ndikuzindikira kukula kofanana kwa antchito ndi bizinesi.