Selemo se Secha se tla haufinyane naheng ea rona, kahoo re tla isa thepa ho bareki ba rona pele ho Selemo se Secha.Lisebelisoa tsa lihlahisoa tse rometsoeng ka nako ena li kenyelletsa: 12Cr1MoVg, Q345B,GB/T8162, joalo-joalo.

Lihlahisoa tsa mantlha tsa k'hamphani ea rona li kenyelletsa: SA106B, 20 g, Q345, 12 Cr1MoVG, 15 CrMoG, Cr5Mo, 1 Cr9Mo, 10 CrMo910, A335P5 / P9 / P11 / P12 / P22 / P91 / P92.

Amohela potso ea hau.