Shanghai Rongtie Industry Co., Ltd is a comprehensive materials trading company, it's also a Baosteel's first -level agent.We are given the franchise to sell Baosteel, including cold rolled steel coils, prepainted steel coils, hot -dipped galvanized steel coils, stainless steel, our purpose is"credit first, customer first, small profits, mutual benefit'.Our aim is to provide inexpensive high-quality products and excellent after-sales service.