Amapharamitha ayisisekelo we-Steel Beace Piles

Izinqwaba zensimbi eshisayo eshisayo ikakhulukazi zinezinhlobo ezintathu:Amashidi ensimbi akhiwe, I-Z-Shape Sheet Sheet Pileskanye nenqwaba yensimbi yensimbi eqondile. Bheka umfanekiso 1 ngemininingwane. Phakathi kwazo, izinqwaba zensimbi enomumo e-Z Kuyi-1/3 ephakeme kunezinqwaba zensimbi ebekiwe yensimbi. Manje isetshenziswa ikakhulukazi eYurophu nase-United States. Izingcingo ezishiywe zensimbi enziwe kakhulu zisetshenziswa kakhulu e-Asia, kufaka phakathi iChina.