Pipa baja bunder minangka jinis pipa kanthi bagean salib bunder, sing duwe macem-macem area aplikasi.Ora mung nduweni ciri unik, nanging uga nduweni prospek aplikasi sing akeh.
Teknik: Liyane, Hot Rolled, Cold Rolled, RW, Frekuensi dhuwur dilas, Extruded