Umahluko phakathi kwe-I-beam S355ML, S460J0, kunye ne-S235JR Shandong Kungang Metal Technology Co., Ltd. ngumthengisi weemveliso zetsimbi.Sinikezela ngetsimbi yentsimbi, i-H-shaped steel, i-I-shaped iron kunye nezinye iintlobo zetsimbi, ezisetyenziswa ngokubanzi kumashishini okwakha kunye nokuvelisa.L...
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