https://www.ztzgsteeltech.com/uploads/2024.7.10-翻译后.mp4 Ixesha lokuposa: Jul-10-2024 Ngaphambili: Iteknoloji yethu ikuphucula njani ukuthembeka kwemveliso?-ZTZG Okulandelayo: 273 ERW Pipe Mill;ERW Tube Mill;ZTZG