Ntim:
Txhawm rau tiv thaiv cov txheej txheem steel los ntawm kev raug mob hauv cov txheej txheem ntawm kev tuav thiab kev thauj mus los, cov khoom no tau ntim siab thiab ntxiv cov txheej txheem tiv thaiv ntxiv ntawm lawv los tiv thaiv kev hnav los ntawm kev sib txhuam lossis kev cuam tshuam. Cov khoom loj, cov khoom sib dhos thiab cov pob khoom tseem ceeb tau muab qhwv tag nrho hauv cov ntaub ntawv tsis muaj dej (yas zaj duab xis, rustproof ntawv thiab lwm yam) rau kev tiv thaiv kev ya raws thiab xeb, cov khoom me me tau muab tso rau hauv cov thawv ntoo kom tsis txhob poob lossis kev puas tsuaj. Txhua cov khoom siv thiab cov khoom siv ntawm qhov ntawd muaj cov ntawv cim tshwj xeeb nrog rau cov ntaub ntawv tiv thaiv thiab cov ntsiab lus ntawm qhov chaw teeb tsa, kom ntseeg tau tias lawv tuaj yeem raug tshem tawm ntawm qhov chaw nyab xeeb thiab koj tuaj yeem nruab txhua qhov chaw zoo.

Kev thauj mus los:
Cov hlau zoo li qub tuaj yeem xa mus rau hauv cov thawv lossis cov nqa khoom loj los ntawm qhov loj thiab qhov chaw. Txoj hlua khi feem ntau yog siv los tuav cov khoom loj lossis hnyav, thiab cov khoom no tau khi nrog cov hlua hlau tiv thaiv los ntawm cov ntoo ntawm ob sab los tiv thaiv kev txav thiab kev puas tsuaj thaum thauj. Rau logistics, txhua yam yog npaj nrog tus txheej txheem thauj thoob ntiaj teb rau kev thauj mus los ntev, txawm tias kev xa khoom thoob ntiaj teb, xa khoom raws sijhawm thiab tuaj txog nyab xeeb.