Umehluko phakathi kwe-I-beam S355ML, S460J0, ne-S235JR i-Shandong Kungang Metal Technology Co., Ltd. ingumnikezeli wemikhiqizo yensimbi.Sihlinzeka ngensimbi yesiteshi, insimbi emise okwe-H, insimbi emise okwe-I nezinye izinhlobo zensimbi, ezisetshenziswa kakhulu embonini yokwakha neyokukhiqiza.L...
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