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Lub ntsiab ntawm cov hnav -} tiv taus steel phaj

Puas yog hnav -} resist resistant steel phaj hnav {{}} tiv taus ntawm ib lossis ob tog?

Kev siv ntawm kev coj -} Cov hlau tiv taus hlau

Hnav - ionistant steel phaj yam ntxwv

Cov ntsiab lus tseem ceeb rau kev xaiv thiab siv cov hnav - ion} Cov hlau tiv taus steel phiaj

Kev tsom xam cov ntawv thov tseem ceeb rau cov hnav - ion} resist resist illanthan steel hlau

Hnav -} tiv taus steel phaj tsim tawm thiab thev naus laus zis thev naus laus zis

Hnav -} tiv taus steel phaj