Musiyano uripo pakati peI-beam S355ML, S460J0, uye S235JR Shandong Kungang Metal Technology Co., Ltd. mutengesi wezvigadzirwa zvesimbi.Isu tinopa chiteshi chesimbi, H-yakaita simbi, I-yakaita sesimbi uye mamwe marudzi esimbi, ayo anoshandiswa zvakanyanya mukuvaka nekugadzira maindasitiri.L...
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