Raws li cov chaw tsim khoom lag luam, peb muab Saj zawg zog Hlau Toj roob hauv pes Ciam teb Edging. Corten edging tso cai rau dawb khoov thiab shaping, yoog rau txoj kev tsim xws li txoj kev winding, ncig tsob ntoo pits, thiab paj txaj tsis zoo. Nws ib txwm tsim txheej txheej xeb ruaj khov, tiv thaiv corrosion thiab deformation, nrog rau kev pab cuam lub neej ntawm kaum xyoo.