Galvanized square pipe is a hollow square section steel pipe with a square section shape and size made of hot-rolled or cold-rolled galvanized strip steel or galvanized coil as a blank, cold-bent and formed by high-frequency welding. , Ki te titi rekekara ranei i whakarewaina, he mea hanga i roto i te putorino wai matao, he mea whakarewaina i mua, a ka whakarewaina e te titi mahana
