We are one of the large stockists of carbon seamless steel pipes, with more than 8,000 tons of seamless line pipes in stock every month, and can ship them with the fastest delivery time. Professional manufacturer of straight seam submerged arc welding (JCOE) pipes, specifications ranging from: DN400 ~ DN1500*6MM ~ 60MM, standards in accordance with API 5L PSL1 &PSL2/ASTM /DIN/JIS /EN/AS, etc. Grade: Class B, X42, X46, X52, X60, X65, X70, X80, S355J0H, etc.