Galvanized steel kos khawm rau fiber ntau cabling

Kos khawm rau fiber ntau cabling, siv rau dai cable. Lub cev yog ua los ntawm galvanized steel (kub-ntsag

galvanized rau ruaj khov nyob rau hauv cov ib puag ncig ib puag ncig thiab ua kom muaj kev ntseeg siab nyob deb nroog), rau nruab thiab ua haujlwm, cuam tshuam nrog

Thiab lub sijhawm txuag rau cabling.