Square chitoliro ndi dzina lalikulu chitoliro ndi amakona anayi chitoliro, ndiye chitsulo chitoliro ndi wofanana ndi wosiyana mbali utali. Amapangidwa ndi chitsulo chopindika pambuyo pochiza. Nthawi zambiri, chitsulo chamzerecho chimatsegulidwa, kusanjidwa, crimped ndi welded kuti apange chitoliro chozungulira, kenako ndikugubuduza mu chitoliro chachikulu ...
Werengani zambiri