Professional production: seamless steel pipe, oil casing, precision steel tube, steel tube American Standard (ASTM), German standard (DIN), Japanese standard steel pipe (JIS), large diameter seamless ..

Professional production: seamless steel pipe, oil casing, precision steel tube, steel tube American Standard (ASTM), German standard (DIN), Japanese standard steel pipe (JIS), large diameter seamless ..

The main carbon board of the company: 45#/20Mn-50MnAlloy plate: S255JR/S355J0/S355J2/10CrMoAl/20MnSi/38CrMoAlBoiler plate: Q345R /16MnDR/ container Q370R/Q420R /12MnNiVR/SA516 series /15MnNiDR/07MnNiM..

Professional production: seamless steel pipe, oil casing, precision steel tube, steel tube American Standard (ASTM), German standard (DIN), Japanese standard steel pipe (JIS), large diameter seamless ..

Professional production: seamless steel pipe, oil casing, precision steel tube, steel tube American Standard (ASTM), German standard (DIN), Japanese standard steel pipe (JIS), large diameter seamless ..

Professional production: seamless steel pipe, oil casing, precision steel tube, steel tube American Standard (ASTM), German standard (DIN), Japanese standard steel pipe (JIS), large diameter seamless ..

Professional production: seamless steel pipe, oil casing, precision steel tube, steel tube American Standard (ASTM), German standard (DIN), Japanese standard steel pipe (JIS), large diameter seamless ..

Professional production: seamless steel pipe, oil casing, precision steel tube, steel tube American Standard (ASTM), German standard (DIN), Japanese standard steel pipe (JIS), large diameter seamless ..

Professional production: seamless steel pipe, oil casing, precision steel tube, steel tube American Standard (ASTM), German standard (DIN), Japanese standard steel pipe (JIS), large diameter seamless ..