I-tube engenamthungo yenziwe kwisiqwenga esinye, ihlatywe ngokuthe ngqo kwintsimbi ejikelezileyo, ngaphandle kwe-welds ebusweni, kwaye inoluhlu olubanzi lwezicelo. Ngenxa yokucutshungulwa okukhethekileyo kweetyhubhu zentsimbi ezingenamthungo, intsimbi ye-carbon structural, intsimbi ye-alloy ephantsi, njl njl.
Funda ngokugqithisileyo