Qingdao RT Steel Structure Co., Ltd. and Shandong Lanjing Steel Structure Co., Ltd., both are owned by Mr. Xing Huaigao. Our office located in Qingdao and factory in Weifang. As a professional company with rich expertise, we specialize in designing, producing, and installing all kinds of high - quality prefabricated steel structure buildings. Our 75, 685- square- meter facility, employing 90 skilled workers, ensures robust production capabilities. We utilize advanced machinery: laser cutters for precision, assembly/ straightening machines, flame cutters, gantry submerged arc welders, container house frame formers, high- tech paint coating lines, and PU panel machines. With 3 steel structure production lines ( 50, 000 tons annual capacity), 2 container house lines ( 40, 000 units annually), and 1 high- end PU panel line, our output meets diverse needs. Our R&D team consisting of 20 engineers with bachelor’s degrees or higher, ensuring innovative and customized solutions. Two professional QA/ QC inspectors enforce strict quality control at every stage.

Holding CE, ISO9000, and WPS certifications, we launch new products within 20–50 days. Our structures suit various international markets. With 8 years of export experience, we serve clients from North America, South America, Eastern Europe, Southeast Asia, Africa, and Oceania. Backed by superior quality and a 12- month warranty, we prioritize customer satisfaction as our core commitment.

We specialize in designing, producing, and installing high-quality prefabricated steel structures, offering innovative solutions and exceptional reliability for global markets.