1. Lub zog muaj zog:hlau tag nrho cov yas muaj lub zog zoo heev thiab ua haujlwm ntev, thiab muaj peev xwm tiv taus cov quab yuam loj thiab tiv thaiv cov hniav seem.
2. Zoo haum:hlau tag nrho cov yas muaj peev xwm ua kom haum zoo rau cov hniav, tiv thaiv kev nkag mus ntawm cov khoom noj thiab cov kab mob thiab txo cov kev pheej hmoo ntawm cov kab mob thib ob.
3. Yooj yim rau fabricate thiab kho:Cov txheej txheem fabrication ntawm cov hlau tag nrho cov yas yog cov paub tab thiab tuaj yeem kho thiab kho raws li tus neeg mob qhov xwm txheej tshwj xeeb.