Shanghai Zhezhong Construction Co., Ltd, with a registered capital of RMB ten million, specialized at producing pretentioned spun concrete piles and spiral welding steel piles, located at Puwei road, Fengxian district, Shanghai. We produce all kinds of pileswith a max length of a single sect at thirtynine m, and it had already exceed other manufacturer in technical field. The size of Lthirtynine m pile is national first and had been granted a patent by the national intellectual property office. Also had been authenticated to global advanced lever after consulting by the Consult Group, ISTIS. Our company possess two pressure steaming system and fifteen auto claves. The period of production can be greatly shortened, thus the whole manufacture cycle can be controlled in three days. Our company strictly executes the ISO international standard. We devotes to market development and forms good corporation with many large industrial and construction enterprise like Baosteel Group, China Communication Construction company Ltd, we also export our products to Malaysia and Brunei and gained good reputation from customers