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. , Ya da soğuk biçimlenmiş çelik borusundan yapılmış galvanize dörtgenç tüpü önden hazırlanmış ve sonra sıcak dip galvanize ile işlenmiş.