We produce special shaped tubes with high precision,the standard we are following are: API5L/5CT,SA-53/SA-53M,SA-106,SA-179/SA-179M,SA-192/SA-192M ,SA-213/SA-213M,SA-334/SA-334M,ASTM A519,DIN2391,DIN17175,En10216,BS3059,JIS3461,etc.We annually produces 30,000 tons of cold drawn seamless tubes, including fin tube, boiler tube,Special Shaped tubes,Tubes for Structural Purpose, Pipes for Liquid Service with small and medium dimensions, Low Alloy Seamless Steel Tubes, Low and Medium Pressure Boiler Tubes, Pressure Tubes, Tubes for Automobiles, Bearing Tubes, etc. The products enjoy great...