Shandong ZhengYuanming Construction Engineering Co., Ltd is a professional manufacturer, supplier of China steel structure frame building in multi span, we provide China steel structure frame building in multi span OEM & ODM wholesale, China steel structure frame building in multi span price and more questions, please contact us and follow our Facebook , We will respond in a timely manner, we are not the lowest price of China steel structure frame building in multi span, but we will provide you with better service.