Zhejiang Dingxin Steel Tube Manufacturing Co., Ltd established in Mar.12.2004, invested 20 million at first-run.Specialized in the supply of various Precision Seamless Steel Tube for Hard -drawn and all kinds of profiled bar, 15 thousand tons output peryear . The specification out-span of product is from �20mm to �159mm, the thickness from 1mm to 16mm, the product is widely used in auto liners�oil tank in jack�oil tank in lifting�electrical Crust�liquid tank in compressor�tunnel project�pipe for normal and low pressure bolier�pipe for heat exchanger�pipe for abnormity�engineering machine�transport machine�automation liners etc.