Nws muaj ntau yam zoo heev, xws li:
1. Good corrosion Kuj: Muaj peev xwm tswjfab ruaj khov hauv ntau yam kev ua phem ib puag ncig thiab tsis yooj yim corroded.
2. Muaj Zog Muaj Zog: Nws muaj lub zog siab thiab muaj peev xwm tiv taus cov pressures thiab thauj khoom loj loj thiab thauj khoom.
4. Cov rwb thaiv tsev zoo: Nws muaj cov hluav taws xob rwb thaiv hluav taws xob zoo thiab haum rau cov hluav taws xob.
5. Cua sov kuj: nws tuaj yeem tswj tau ruaj khov ua tau nyob rau hauv ib qho ntsuas kub.
Nws muaj ntau cov kev siv hauv ntau thaj teb, xws li kev tiv thaiv kev tiv thaiv, ib puag ncig kev tiv thaiv, hluav taws xob, kev tsim hluav taws xob, thiab lwm yam.