Coil-yazungurutse igiti kivuga ku murongo wicyuma uzunguruka mu buryo butaziguye mu bunini runaka n'umuzingo ku bushyuhe bw'icyumba maze uzunguruka muri coil yose hamwe n'uburiri. Ugereranije n'amashuri ashyushye, ibiceri bikonje bifite ubuso bwiza kandi burarangiye, ariko bizatera imihangayiko yimbere kandi akenshi bingana nyuma yo kuzunguruka.
Ubunini: 0.1-8mm
Ubugari ni 600-2 000mm
Grades: Q195A-Q235A, Q195AF-Q235AF, Q295A(B)-Q345 A(B); SPCC, SPCD, SPCE, ST12-15; DC01-06