Tytsteel yog cov kws tshaj lij kev tsim tshuaj paus ntawm galvanized steel kav hlau nyob rau txhua qhov chaw welded {} Muaj kub-dip galvanized steel kav thiab galvanized steel Cov kav dej .}}}}} {{{{{{{14. Yog vim li cas peb nquag koom nrog kev ua lag luam thoob ntiaj teb kom tau raws li peb cov neeg tau txais kev sib ntsib ntawm tus neeg. Saib peb lub Hoobkas, cov khoom lag luam, thiab cov pab pawg tshaj lij hauv kev ua.
