Nws yog dav siv hauv kev lag luam tsheb, OA qhov chaw, khoom siv hluav taws xob, kev kho mob, tsev ntse, khoom kis las, kev saib xyuas tus kheej thiab lwm yam. Cov khoom muag muag zoo hauv Tebchaws Europe, Amelikas thiab Nyijpooj, xws li: tus viav vias, siv tus txhuam hniav hluav taws xob, tus neeg siv khoom ntse, lub xauv ntse, cov khoom siv me me hauv tsev (kas fes tshuab, kua mis nyuj tshuab, thiab lwm yam), cov cuab yeej siv kho mob, khoom siv zoo nkauj, khoom siv rau cov laus, cov cuab yeej hluav taws xob , cov khoom siv zaws
Cim npe nrov: hluav taws xob dc cua twj tso kua mis dosing siab zog twj tso kua mis manufacturers, lwm tus neeg, hoobkas, Mekas
