Pūnaehana mīkini pahu pahu kū pololei, lako me ka multihead weigher, ʻike metala& e nānā i ka mīkini paona a me ka lepili, hiki ke hoʻopau maʻalahi i ke kaupaona ʻana, ka hana ʻana i ka ʻeke, ka hoʻopiha ʻana, ka sila ʻana, ka ʻoki ʻana, ka lepili ʻana, a me ka wehe ʻana i nā huahana metala, underweigh a overweight paha.

