1. Cov thawv tub rog: Lawv tsuas yog siv rau kev thauj mus los ntawm tub rog thiab khaws cia, thiab muaj kev ruaj ntseg thiab kev tiv thaiv siab. Cov thawv ntim no tuaj yeem tiv taus qhov chaw hnyav, huab cua thiab kev tawm tsam sab nraud, thiab feem ntau siv los thauj riam phom, mos txwv thiab lwm yam khoom siv tub rog. Lawv tsim thiab tsim khoom yuav tsum ua raws li cov tub rog nruj thiab cov qauv.
2. Cov thawv txias txias: Lawv tau tsim tshwj xeeb rau kev thauj khoom uas yuav tsum tau khaws cia qis, xws li zaub mov, tshuaj, thiab lwm yam. Cov thawv no tau nruab nrog cov khoom siv tub yees thiab cov ntaub ntawv rwb thaiv tsev kom ruaj khov ntawm qhov kub hauv lub thawv. Cov thawv txias yog siv dav hauv kev lag luam xws li logistics, kev ua liaj ua teb thiab tshuaj.
3. Cov thawv ntim khoom phom sij: Lawv yog siv los thauj cov khoom txaus ntshai, xws li cov khoom tawg, tawg, tshuaj lom lossis cov khoom siv hluav taws xob. Cov thawv ntim khoom no muaj kev ntsuas tshwj xeeb kev nyab xeeb thiab cov cuab yeej tiv thaiv kom muaj kev nyab xeeb thaum thauj. Muaj cov kev cai thoob ntiaj teb nruj thiab cov qauv rau cov thawv no.
4. Cov ntim tshuaj ua kua: Lawv tau tsim tshwj xeeb rau kev thauj cov tshuaj ua kua, thiab muaj kev ua haujlwm xws li tiv thaiv kev tawm, tiv thaiv corrosion thiab tawg-pov thawj. Cov thawv no feem ntau siv hauv kev thauj mus los hauv kev lag luam xws li tshuaj lom neeg thiab roj av. Vim lawv qhov tshwj xeeb, kev tsim khoom thiab cov khoom xaiv ntawm cov kua tshuaj ntim khoom yog tswj nruj me ntsis.
