we export about 25000-35000tons pipes every year, including seamless, ERW, LSAW, SSAW pipes. Surface bare, anti-rusty coating, FBE/PE/PP coating, galvanized, etc.seamless size rang from 1/2 inche to 12 inches (part for 14 inches and 16 inches random length). Normal specification: ASTM A53/A106/API 5L, ASTM A333 GR.6, DIN1629/2448 ST44/ST52, EN10297 E355and all GB standards. bare tubing: API 5CT J55,K55,N80welded size range from 21.3mm to 2845mm. normal spec: ASTM A53/A106/API 5L, API 5CT and GB standards.
