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 tse kholo tsa k'hamphani ea rona li kenyelletsa: SA106B, 20 g, Q345, 12 Cr1MoVG, 15 CrMoG,...
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