Galvanized kav muaj ntau yam kev siv, suav nrog roj av, roj av, tshuaj lom neeg thiab lwm yam kev lag luam, nrog rau cov yeeb nkab txuas rau trestle txuas hniav, thiab cov kav dej rau kev txhawb nqa thav duab hauv kuv qhov tunnels.

Galvanized ERW Steel Pipe tau xa tawm mus rau New Zealand, nrog rau cov npe hauv qab no.

Yog tias koj xav tau galvanized steel yeeb nkab, thov hu rau peb.