Dab tsi yog qhov zoo ntawm lub plhaub sab nrauv ntawm lub sim hluav taws xob rauv?

Cov khoom siv yuav tsum zoo ua ntej, thiab cov khoom zoo yog carbon steel sheet hlau. Peb txiav txim siab tiv thaiv cov khoom siv hluav taws xob ua los ntawm cov khib nyiab hlau, vim tias lub neej ntawm lub cub tawg muaj ntau yam ua rau cov khoom siv sab nrauv. Lub qhov cub kub, thiab cov ntawv hlau nyias tsis tuaj yeem muaj kev nyab xeeb. lav.