Kev ntim khoom ua kuayog ib qho kev siv ntau zaus, uas tseem yog lub zog ntawm yilong Machinery, peb cov cav tov tau dhau los ntawm kev kuaj dej tsis tu ncua, thiab siv cov ntaub ntawv muaj zog thiab ruaj khov kom tsis txhob hnav los ntawm qee cov kua corrosive me ntsis, kom lub tshuab muaj peev xwm tuav tau ntev- lub sijhawm ua haujlwm tau zoo.