China Qingdao baorun steel structure engineering co.,ltd. was founded in 1999,it is one professional steel structure construction company,which could undertake designing,fabrication and assembly,after-sales service for various types of building steel structure ,such as industrial workshop and warehouse building steel structure,civil construction,heavy steel structure, stadium,shopping mall,High-rise buildings steel structure,Road bridge engineering steel structure.and ultility boiler steel structure,Offshore platform steel structure,mechnical steel frame structure.