Expensive and Xinda steel ( Tianjin ) Limited is a production and sales of seamless pipe materials circulation enterprises, and is now Shanghai boiler factory, Wuhan boiler factory, Harbin boiler factory, Beijing boiler company, Oriental boiler plant, CNPC, Sinopec and other large electric power construction, boiler, chemical, petroleum industries leading enterprises maintained a good business relationship, received by the customer. In the oil and was rated as outstanding suppliers, sinopec. Companies can now hot, cold drawn by 6 x 1 - 720 x 100 by various materials seamless steel tubes and stainless steel pipe standard.