ihe onwunwe: HSS
Nha(Dia*Angle*Oghere ime*Ọkpụrụkpụ *Ezé):
35*90*13*8*16,35*60*13*8*16,45*60*16*10*16,45*90*16*10*16,60*30*22*8,60* 45*22*10,60*60*22*10,60*75 *22*10,60*90*22*10,63*45*22*10,63*60*22*10,63*90*22**20*10,75*30*27*10,75* 40*27*10,—80*90*27*20*22
Ogologo ndụ ọrụ