Qingdao Sangao Metal Structure Co.,Ltd is a professional steel coils, lighting pole, roofing material, cold rolled steel coil, high mast lighting poles manufacturer and factory, we have been exporting high quality steel coils made in China for years, welcome to contact us. Corporation headquarters is situated in Jiaozhou City, with branches in Shanghai City, Canton City, Wuhan City, Shenyang City, etc. Covering an area of 80,000 square meters, we now have over 460 employees, including 88 professional technicians, 18 senior technicians, and 30 junior technicians. Moreover, with help from some famous experts hired as our consultants, we can promote our ABM (activity based management) and BPR (business process reengineering) management, technology innovation and quality control. So far, our output of steel reach 140，000 tons of angle steel tower, 100,000 tons of steel tube tower and 280,000 tons of hot-dip galvanizing, and currently export 48% of our products worldwide.